

  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
  ALPS ELECTRIC
    MFM
      DRND-10A          2      615     1     616       616        60.00     17    3.5                        10.46
      DRND-20A          4      615     2     616       616        60.00     17    3.5                        20.91
    RLL
      DRPO-20D          2      615     1     616       616        60.00     26    3.5                        15.99
      RPO-20A           2      615     1     616       616        60.00     26    3.5                        15.99
  AMPEX
    MFM
      PYXIS-13          4      320     2     132       132        90.00     17    5.25                       10.88
      PYXIS-20          6      320     3     132       132        90.00     17    5.25                       16.32
      PYXIS-27          8      320     4     132       132        90.00     17    5.25                       21.76
      PYXIS-7           2      320     1     132       132        90.00     17    5.25                        5.44
  AREAL
    N/A
      BP100             2     1720     1                          29.00     60    2.5                H      103.20  New Glass media
      BP200             2     3400     1                          29.00     60    2.5                H      204.00  New Glass media
      MD2050            2      819     1                          29.00     60    2.5                H       49.14  New Glass media
      MD2100            2     1638     1                          29.00     60    2.5                H       98.28  New Glass media
  ATASI
    MFM
      3020              3      645     2     320      none         0.00     17    5.25      7                16.45
      3033              5      645     3     320      none         0.00     17    5.25      7        F       27.41
      3046              7      645     4     320      none         0.00     17    5.25      7        F       38.38
      3051              7      704     4     350      none         0.00     17    5.25      7                41.89
      3051+             7      733     4     368                   0.00     17    5.25                       43.61
      3053              7      733     4    365       none         0.00     17    5.25     7                 43.61
      3058              8     1024     4    none      none         0.00     17    5.25      7                69.63
      3075              8     1024     4    1024      none         0.00     17    5.25      7                69.63
      3085              8     1024     4     512      none         0.00     17    5.25      7                69.63
  BASF
    MFM
      6185              6      440     3     220       220         0.00     17    5.25                       22.44
      6186              4      440     2     220       220         0.00     17    5.25                       14.96
      6187              2      440     1     220       220         0.00     17    5.25                        7.48
      6188-R1           2      612     1                           0.00     17    5.25                       10.40
      6188-R3           4      612     2                           0.00     17    5.25                       20.81
  BRAND TECH
    ESDI
      BT9124E           5     1166     3                          16.50     36    3.5                H      104.94  ESDI
      BT9170E           7     1072     4                          16.50     41    3.5                H      153.83
      BT9220E           9     1208     5                          16.50     36    3.5                H      195.70
    Other
      BT8085            8     1024     4                           0.00     17                               69.63
      BT8128            8     1024     4                           0.00     31                              126.98
      BT8170            8     1024     4                           0.00     17                               69.63
  BULL
    MFM
      D 530             3      987     2    none      none         0.00     17    5.25               F       25.17  Honeywell
      D 550             5      987     3    none      none         0.00     17    5.25               F       41.95  Honeywell
      D 570             7      987     4    none      none         0.00     17    5.25               F       58.73  Honeywell
      D 585             7     1166     4    none                   0.00     17    5.25               F       69.38  Honeywell
  C. ITOH
    MFM
      YD-3530           5      731     3     732                   0.00     17    5.25               H       31.07
      YD-3540           7      731     4     732                  26.00     17    5.25               H       43.49
    SCSI
      YD-3042           4      788     2     789                  26.00     31    5.25               F       48.86  SCSI
      YD-3082           8      788     4     789                  26.00     26    5.25               F       81.95  SCSI



  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
  CARDIFF
    ESDI
      F-3080E           5     1024     3    none      none        20.00     26    3.5                H       66.56
      F-3127E           5     1024     3    none      none        20.00     35    3.5                H       89.60
    MFM
      F-3053            5     1024     3    none      none        20.00     17    3.5                        43.52
    SCSI
      F-3080            5     1024     3    none      none        20.00     26    3.5                        66.56  SCSI/ECSI
      F-3080S           5     1024     3    none      none        20.00     26    3.5                H       66.56
      F-3127            5     1024     3    none      none        20.00     42    3.5                       107.52  SCSI/ECSI
      F-3127S           5     1024     3    none      none        20.00     35    3.5                H       89.60
  CDC
    ESDI
      94156-48          5      925     3    none      none        28.00     17    5.25      7        F       39.31  ESDI
      94156-67          6      925     3    none      none        28.00     20    5.25      7        F       55.50  ESDI
      94156-86          9      925     5    none      none        28.00     17    5.25      7        F       70.76  ESDI
      94166-101         5      969     3    none      none        16.50           5.25      7                 0.00  ESDI
      94166-141         7      969     4    none      none        16.50           5.25      7                 0.00  ESDI
      94166-182         9      969     5    none      none        16.50           5.25      7                 0.00  ESDI
      94186-383        13     1412     7    none      none        19.50           5.25      7        F        0.00  ESDI
      94186-383-H      15     1224     8    none      none        14.50           5.25      7                 0.00  ESDI
      94186-442        15     1412     8    none      none        16.00           5.25      7        F        0.00  ESDI
      94216-106         5      969     3    none      none        16.50     36    5.25      7        H       87.21  ESDI
      94316-111         5     1072     3    N/A       N/A         23.00     41                       H      109.88
      94316-136         5     1072     3    N/A       N/A         15.00     48                       H      128.64
      94316-155         7     1072     4    N/A       N/A         15.00     36                       H      135.07
      94316-200         9     1072     5    N/A       N/A         15.00     36                       H      173.66
      94354-126         7     1072     4    none      none         0.00     29                              108.81  ESDI
      94354-160         9     1072     5    none      none         0.00     29                              139.90  ESDI
      94354-200         9     1072     5    none      none         0.00     36                              173.66  ESDI
      94354-230         9     1272     5    none      none         0.00     36                              206.06  ESDI
      94356-111         5     1072     3    none      none                  34    3.5                        91.12  ESDI
      94356-155         7     1072     4    none      none        15.00     34    3.5                       127.57  ESDI
      94356-200         9     1272     5    none      none        18.00     34    3.5       7               194.62  ESDI
      WREN III          5      969     3                          18.00     43    5.25                      104.17  ESDI
    N/A
      94314-136         5     1547     3    N/A       N/A         15.00     31                       H      119.89
      94335-150         9     1072     5    none      none        15.00     28    3.5       7        H      135.07  RLL
    MFM
      94155-120         8      960     4       0      none        28.00     17    5.25      7        F       65.28  FH
      94155-120P        8      960     4       0      none        28.00     17    5.25      7        F       65.28  FH
      94155-135P        9      960     5       0      none        28.00     17    5.25      7        F       73.44  FH
      94155-19          3      697     2     128      none         0.00     17              7                17.77
      94155-21          3      697     2     128      none        28.00     17    5.25      7        F       17.77  FH
      94155-25          4      615     2     128                   0.00     17                       F       20.91
      94155-25AT        4      697     2     128      none         0.00     17              7                23.70
      94155-28          4      697     2     128      none         0.00     17              7                23.70
      94155-36          5      697     3     128      none        28.00     17    5.25      7        F       29.62  FH
      94155-38          5      733     3     128      none         0.00     17              7                31.15
      94155-48          5      925     3     128      none        28.00     17    5.25      7        F       39.31  FH
      94155-57          6      925     3     128      none        28.00     17    5.25      7        F       47.17  FH
      94155-67          7      925     4     128      none        28.00     17    5.25      7        F       55.04  FH
      94155-77          8      925     4     128      none         0.00     17              7                62.90
      94155-85          8     1024     4       0      none        28.00     17    5.25      7        F       69.63  FH
      94155-85P         8     1024     4       0      none        28.00     17    5.25      7        F       69.63  FH
      94155-86          9      925     5     128      none        28.00     17    5.25      7        F       70.76  FH
      94155-96          9     1024     5       0      none        28.00     17    5.25      7        F       78.34  FH
      94155-96P         9     1024     5       0      none        28.00     17    5.25      7        F       78.34  FH
      94156-72          9      925     5     128                   0.00     17                       F       70.76
      94204-65          8      941     4       0      none        28.00     17    5.25      7        F       63.99  FH


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      94204-71          8     1024     4       0      none        28.00     17    5.25      7        F       69.63  FH
      94205-30          3      989     2     128                   0.00     17                       F       25.22
      94205-51          5      989     3     128      none        32.00     17    5.25      7        H       42.03  HH
      94295-51          5      989     3     990      none        28.00     17              7                42.03
      94335- 55         5     1072     3    none      none        25.00     17    3.5       7        H       45.56
      94335-100         9     1072     5    none      none        25.00     17    3.5       7        H       82.01
      94355-100         9     1072     5    none      none        16.50     17    3.5       7                82.01
      94355-55          5     1072     3    none      none        16.50     17    3.5       7                45.56
      BJ7D5A 777316     5      671     3               128                  17    5.25               F       28.52  FH  77731608 5.2
      BJ7D5A 777316     5      734     3               128                  17                               31.20      77731613
      BJ7D5A 777316     4      671     2               128        36.00     17    5.25               F       22.81  FH  77731614 5.2
    Other
      9720-1230        15     1635     8                          16.00                                    1056.00  8" Drive 1056 me
      9720-368         10     1217     6                          18.00                                     316.00  8" Drive 316 meg
      9720-500         10     1217     6                          18.00                                     427.00  8" Drive 427 meg
      9720-736         15     1635     8                          16.00                                     637.00  8" Drive 637 meg
      9720-850         15     1381     8                          16.00                                     727.00  8" Drive 727 meg
      SABRE 1230       15     1635     8                          16.00                                    1236.00  8" Drive 1236 me
      SABRE 368        10     1217     6                          18.00                                     368.00  8" Drive 368 meg
      SABRE 500        10     1217     6                          18.00                                     500.00  8" Drive 500 meg
      SABRE 736        15     1635     8                          16.00                                     741.00  8" Drive 741 meg
      SABRE 850        15     1381     8                          16.00                                     851.00  8" Drive 851 meg
    RLL
      94155-135         9      960     5    none      none        28.00     26    5.25      7        H      112.32  RLL HH
      94205-77          5      989     3    none      none        28.00     26    5.25      7        H       64.28  RLL HH
      94335-150         9     1072     5    none      none        25.00     26    3.5       7        H      125.42  RLL
    SCSI
      94161-121         0      969          none      none        16.50           5.25      7        F        0.00  SCSI
      94161-86          0      969          none      none        16.50           5.25      7        F        0.00  SCSI
      94171-300         9     1365     5    none      none        16.50     36    5.25      7        F      300.00  SCSI
      94171-344         9     1549     5    none      none        17.50           5.25      7        F      320.00  SCSI
      94181-385H       15              8                          10.70           5.25               F        0.00  SCSI RUNNER  FH
      94181-574        15     1549     8    none      none        16.00           5.25      7        F      550.00  SCSIFH
      94211-106         5     1024     3                          18.00     36    5.25               H       92.16  SCSI WREN-3  HH
      94211-209         5     1547     3                          18.00     36    5.25               H      139.23  SCSI WREN V  HH
      94211-91          5      969     3    none      none        16.50     36    5.25      7        H       87.21  SCSIFH
      94221-190         5     1547     3    none      none         8.30     52    5.25      7        H      201.11  SCSIHH
      94311-136         5     1224     3    N/A       N/A         15.00     39                       H      119.34
      94311-136         5     1224     3    N/A       N/A         15.00     39                       H      119.34
      94311-136S        5     1224     3    N/A       N/A         15.00     39                       H      119.34
      94351-111         5     1068     3    N/A       N/A         15.00     36                       H       96.12
      94351-126         7     1068     4    N/A       N/A         15.00     36                       H      134.57
      94351-128         7     1068     4    N/A       N/A                   36    3.5                H      134.57  SCSI SWIFT ASYNC
      94351-134         7     1068     4                          15.00     36    3.5                H      134.57  SCSI SWIFT
      94351-160         9     1068     5                                    36    3.5                H      173.02  SCSI SWIFT ASYNC
      94351-172         9     1068     5    none      none        16.50     36    3.5       7               173.02  SCSI
      94351-200         9     1068     5                                    36    3.5                       173.02  SCSI SWIFT ASYNC
      94351-200S        9     1068     5                                    36    3.5                       173.02  SCSI SWIFT SYNC
      94351-230S        9     1272     5                                    36    3.5                       206.06  SCSI SWIFT SYNC
  CENTURY DATA
    ESDI
      CAST-10203E       3     1050     2    1051                  28.00     35    5.25               F       55.13   FH    55
      CAST-10304        4     1050     2    1051                  28.00     35    5.25               F       73.50   FH    75
      CAST-10305        5     1050     3    1051                  28.00     35    5.25               F       91.88   FH    94
      CAST-14404        4     1590     2    1591                  25.00     35    5.25               H      111.30   HH    114
      CAST-14405        5     1590     3    1591                  25.00     35    5.25               H      139.13   HH    140
      CAST-14406        6     1590     3    1591                  25.00     35    5.25               H      166.95   HH    170
      CAST-24509        9     1599     5    1600                  18.00     35    5.25               F      251.84   FH    258
      CAST-24611       11     1599     6    1600                  18.00     35    5.25               F      307.81   FH    315
      CAST-24713       13     1599     7    1600                  18.00     35    5.25               F      363.77   FH    372


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
    SCSI
      CAST-10203S       3     1050     2    1051                  28.00     35    5.25               F       55.13   FH    55
      CAST-10304S       4     1050     2    1051                  28.00     35    5.25               F       73.50   FH    75
      CAST-10305S       5     1050     3    1051                  28.00     35    5.25               F       91.88   FH    94
      CAST-14404S       4     1590     2    1591                  25.00     35    5.25               H      111.30   HH    114
      CAST-14405S       5     1590     3    1591                  25.00     35    5.25               H      139.13   HH    140
      CAST-14406S       6     1590     3    1591                  25.00     35    5.25               H      166.95   HH    170
      CAST-24509S       9     1599     5    1600                  18.00     35    5.25               F      251.84   FH    258
      CAST-24611S      11     1599     6    1600                  18.00     35    5.25               F      307.81   FH    315
      CAST-24713S      13     1599     7    1600                  18.00     35    5.25               F      363.77   FH    372
  CMI
    MFM
      CM 3206           4      306     2                           0.00     17                               10.40
      CM 3426           4      612     2     256      none         0.00     17                       H       20.81
      CM 5205           2      256     1     128       128         0.00     17              7                 4.35
      CM 5206           2      306     1     128      none         0.00     17              7                 5.20
      CM 5410           4      256     2     128       128         0.00     17              7                 8.70
      CM 5412           4      306     2     128      none         0.00     17              7                10.40
      CM 5616           6      256     3     128       128         0.00     17              7                13.06
      CM 5619           6      306     3     128      none         0.00     17              7                15.61
      CM 5826           8      306     4                           0.00     17                               20.81
      CM 6213           2      640     1     256      none         0.00     17              7                10.88
      CM 6426           4      615     2     256      none         0.00     17              7        F       20.91
      CM 6426S          4      640     2     300                   0.00     17                       F       21.76
      CM 6626           4      640     2     256      none         0.00     17              7        F       21.76
      CM 6640           6      640     3     256      none         0.00     17              7        F       32.64
      CM 7660           6      960     3     512      none         0.00     17              7                48.96
      CM 7880           8      960     4     512      none         0.00     17              7                65.28
  COGITO
    MFM
      CG 906            2      306     1     128       128         0.00     17                                5.20
      CG 912            4      306     2     128       128         0.00     17                               10.40
      CG 925            4      612     2     128       128         0.00     17                               20.81
      PT 912            2      612     1     307       307         0.00     17                               10.40
      PT 925            4      612     2     307       307         0.00     17                               20.81
  CONNER
    N/A
      CP-3102A          8      776     4                          26.00     25    3.5                        77.60  AT-BUS 16-BIT
      CP-3102B          8      772     4                          26.00     25    3.5                        77.20  AT-BUS 16-BIT
      CP-3204F          8     1366     4                          24.60     26    3.5                H      142.06
      CP-342            4      805     2                          26.00     29    3.5                        46.69  AT-BUS 16-BIT
    RLL
      CP-3022           2      636     1                          26.00     27    3.5                        17.17  AT-BUS 16-BIT
      CP-3024           2      636     1                          35.40     26    3.5                4       16.54
      CP-3044           2     1047     1                          33.40     26    3.5                4       27.22
      CP-3104           8      776     4                          33.40     26    3.5                H       80.70
      CP-344            4      805     2                          37.30     26    3.5                H       41.86
    SCSI
      CP-3020           2      636     1                          35.40     32    3.5                4       20.35
      CP-3040           2     1047     1                          33.40     41    3.5                4       42.93
      CP-3100           8      776     4    none      none        29.00     29    3.5                H       90.02  SCSI
      CP-3200F          8     1366     4                          24.60     39    3.5                H      213.10
      CP-340            4      788     2    none      none        29.00     26    3.5                        40.98  SCSI
      CP-340            4      805     2    none      none        37.30     26    3.5                H       41.86
  CONNER HOPI
    RLL
      CP-30104          4     1522     2                          27.80     26    3.5                H       79.14
    SCSI
      CP-30100          4     1522     2                          27.80     41    3.5                T      124.80



  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
  CONNER KATO
    RLL
      CP-2024           2      653     1                          48.70     26    3.5                4       16.98
  CONNER STUBBY
    RLL
      CP-4024           2      627     1                          39.30     26    3.5                4       16.30
      CP-4044           2     1104     1                          60.30     26    3.5                4       28.70
  CORE INTNL
    ESDI
      HC 150            9      968     5                          16.00     35    5.25               F      152.46   FH
      HC 260           12     1212     6                          25.00     35    5.25               F      254.52   FH
      HC 310           15     1582     8                          16.00     35    5.25               F      415.27   FH
      HC 40             4      564     2                          10.00     35    5.25               F       39.48   HH
      HC 90             5      969     3                          16.00     35    5.25               H       84.79   HH
    MFM
      AT 30             5      733     3                          21.00     17    5.25               F       31.15   FH
      AT 32             5      733     3                          21.00     17    5.25               H       31.15   HH
      AT 40             5      924     3                          26.00     17    5.25               F       39.27   FH
      AT 63             5      988     3                          26.00     17    5.25               F       41.99   FH
      AT 72             9      924     5                          26.00     17    5.25               F       70.69   FH
      OPTIMA 30         5      733     3                          21.00     17    5.25               H       31.15   HH
      OPTIMA 40         5      963     3                          26.00     17    5.25               H       40.93   HH
      OPTIMA 70         9      918     5                          26.00     17    5.25               F       70.23   FH
    RLL
      AT 30             5      733     3                          21.00     26    5.25               F       47.65   FH
      AT 32             5      733     3                          21.00     26    5.25               H       47.65   HH
      AT 40             5      924     3                          26.00     26    5.25               F       60.06   FH
      AT 63             5      988     3                          26.00     26    5.25               F       64.22   FH
      AT 72             9      924     5                          26.00     26    5.25               F      108.11   FH
      OPTIMA 30         5      733     3                          21.00     26    5.25               H       47.65   HH
      OPTIMA 40         5      963     3                          26.00     26    5.25               H       62.59   HH
      OPTIMA 70         9      918     5                          26.00     26    5.25               F      107.41   FH
  CYNTHIA
    MFM
      D520              4      640     2    none      none         0.00     17              0                21.76
  DISCTRON
    MFM
      D-503             2      153     1       -                            17                                2.60
      D-504             2      215     1       -                            17                                3.65
      D-506             4      153     2       -                            17                                5.20
      D-507             2      306     1     128                            17                                5.20
      D-509             4      215     2     128                            17                                7.31
      D-512             8      153     4       -                            17                               10.40
      D-513             6      215     3     128                            17                               10.96
      D-514             4      306     2     128                            17                               10.40
      D-518             8      215     4     128                            17                               14.62
      D-519             6      306     3     128       128                  17                               15.61
      D-526             8      306     4     128       128                  17              0                20.81
  DMA
    MFM
      360/306           2      612     1     400      none         0.00     17              7                10.40   REMOVABLE
  DTM
    MFM
      853               8      640     4                           0.00     17                       F       43.52
      885               8     1024     4                           0.00     17                       F       69.63
      885               5     1024     3                           0.00     17                       F       43.52
  ELCOH
    MFM
      DISCACHE10        4      320     2                                    17                               10.88
      DISCACHE20        8      320     4                                    17                               21.76


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
  EPSON
    MFM
      HD 850            4      306     2                           0.00     17                               10.40
      HD 860            4      612     2                           0.00     17                               20.81
  FUJI
    MFM
      FK301             4      306     2     128       307                  17                               10.40
      FK302-13          2      612     1     307       613                  17                               10.40
      FK302-26          4      612     2     307       613                  17                               20.81
      FK302-39          6      612     3     307       613                  17                               31.21
      FK303-52          8      615     4     616         -        50.00     17    3.5                        41.82
      FK305-26          4      615     2     616         -        80.00     17    3.5                        20.91
      FK305-39          6      615     3     616         -        80.00     17    3.5                        31.36
      FK309-26          4      615     2     616         -        80.00     17    3.5                        20.91
    RLL
      FK305-39R         4      615     2                          50.00     26    3.5                        31.98     32
      FK305-58R         6      615     3                          50.00     26    3.5                        47.97     49
      FK309-39R         4      615     2                           0.00     26                               31.98     32
    SCSI
      FK308S-39R        4      615     2                          50.00     26    3.5                        31.98     32
      FK308S-58R        6      615     3                          50.00     26    3.5                        47.97     45
      FK309S-50R        4      615     2                          50.00     32    3.5                        39.36     41
  FUJITSU
    ESDI
      2244E             5      823     3                          25.00     35    5.25               F       72.01   FH
      2245E             7      823     4                          25.00     35    5.25               F      100.82   FH
      M 2246E          10      823     6                          25.00     35    5.25               F      144.03  ESDI
      M 2247E           7     1243     4                          25.00     35    5.25               F      152.27  ESDI
      M 2248E          11     1243     6                          25.00     35    5.25               F      239.28  ESDI
      M 2249           15     1243     8                          18.00     35    5.25               F      326.29   ESDI or SCSI
      M 2249E          15     1243     8                          25.00     35    5.25               F      326.29  ESDI
      M 2261E           8     1658     5                          16.00           5.25               F      366.00
      M 2263E          15     1658     8                          16.00           5.25               F      688.00
    MFM
      2230 AS           2      320     1    128       128                   17                                5.44
      2233 AS           4      320     2                                    17                               10.88
      2234 AS           6      320     3                                    17                               16.32
      2235 AS           8      320     4                                    17                               21.76
      2241 AS           4      754     2                                    17                               25.64
      H2226AD           6      615                                          17                               31.36
      H2226D            6      615                                          17                               31.36
      M 2226D2          6      615     3                          35.00     17    3.5                        31.36
      M 2227D2          8      615     4                          35.00     17    3.5                H       41.82
      M 2230AS          2      306     1                           0.00     17                                5.20
      M 2230AT          2      306     1                                    17                                5.20
      M 2231            2      306     1                           0.00     17                                5.20
      M 2233AS          4      306     2                           0.00     17                               10.40
      M 2233AT          4      306     2                                    17                               10.40
      M 2234AS          6      306     3                           0.00     17                               15.61
      M 2235AS          8      306     4                           0.00     17                               20.81
      M 2241AS          3      754     2     375                   0.00     17                               19.23
      M 2242AS          7      754     4     375                   0.00     17                               44.86
      M 2242AS2         7      754     4                          30.00     17    5.25                       44.86
      M 2243AS         11      754     6     375                   0.00     17                       F       70.50
      M 2243AS2        11      754     6                          30.00     17    5.25                       70.50
      M 2243T           7     1186     4                          25.00     17    5.25                       70.57
      M 227D2           8      615     4                          35.00     17    3.5                H       41.82
    Other
      M 2227D           8      615     4                                    45                       H      110.70
      M 2380A          27      745     8                          16.00           8                  F     1000.00  ESMD parallel fa


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      M 2382K/P        27      745     8                          16.00           8                  F     1000.00  ESMD or IPI-2 in
    RLL
      M 2225D           4      615     2                          35.00     26    3.5                        31.98
      M 2225DR          4      615     2                          35.00     26    3.5                        31.98
      M 2226DR          6      615     3                          35.00     26    3.5                        47.97
      M 2227DR          8      615     4                          35.00     26    3.5                        63.96
      M 2243R           7     1186     4                          25.00     26    5.25                      107.93
      M 2361A          20      842     6                          18.00     82    10.5               F      690.44
    SCSI
      2244SA            5      823     3                          25.00     35                               72.01
      H2226SA           6      615                                                                            0.00
      M 2245SA          7      823     4                          25.00     35                              100.82
      M 2246SA         10      823     6                          25.00     35    5.25               F      144.03
      M 2261SA/HA       8     1658     5                          16.00           5.25               F      357.00
      M 2263SA/HA      15     1658     8                          16.00           5.25               F      672.00
      M 2344KS         27      624     8                          16.00           8                         690.00
      M 2372K/KS       27      745     8                          16.00           8                  F      823.00
      M 2612S           4     1334     2                          20.00           3.5                H       90.00
      M 2613S           6     1334     3                          20.00           3.5                H      136.00
      M 2614S           8     1334     4                          20.00           3.5                H      182.00
  HEWLETT-PACKARD
    SCSI
      HP 97544S/D       8     1447     4                          16.50     57    5.25               F      329.92
      HP 97548S/D      16     1447     8                          16.50     57    5.25               F      659.83
  HITACHI
    ESDI
      DK512-12          7      823     4                          23.00           5.25               F        0.00   FH
      DK512-17         10      823     5                          23.00           5.25               F        0.00   FH
      DK512-8           5      823     3                          23.00           5.25               F        0.00   FH
      DK514-38         14      903     8                          16.00     51    5.25               F      322.37   FH
      DK522-10          6      823     3                          25.00     36    5.25               H       88.88   HH
    MFM
      DK 301-1          4      306     2                          85.00     17    3.5                        10.40
      DK 301-2          6      306     3                          85.00     17    3.5                        15.61
      DK 511-3          5      699     3     300                  30.00     17    5.25               F       29.71  FH
      DK 511-5          7      699     4     300                  30.00     17    5.25               F       41.59  FH
      DK 511-8         10      823     5     400                  23.00     17    5.25               F       69.95  FH
      DK 521-5          6      823     3     400                  25.00     17    5.25               H       41.97  HH
    SCSI
      DK512C-12         7      823     4                          23.00           5.25               F        0.00   FH
      DK512C-17        10      819     5                          23.00     35    5.25               F      143.32   FH
      DK512C-8          5      823     3                          23.00           5.25               F        0.00   FH
      DK522C-10         6      819     3                          25.00     35    5.25               H       86.00   HH
  IBM
    MFM
      1430              5      306     3                                    17                               13.01
      665-30            4      615     2    300                             17                               20.91
      665-38            5      733     3    300       732                   17                               31.15
      WD12              4      306     2    296       296                   17                               10.40
      WD25              8      306     4    296       296                   17                               20.81
  IMI
    MFM
      5006              2      306     1     214      none         0.00     17              0                 5.20
      5012              4      306     2     214      none         0.00     17              0                10.40
      5018              6      306     3     214      none         0.00     17              0                15.61
  IMPRIMIS
    Other
      9415-519          3      697     2                                                                      0.00
      9415-536          5      697     3                                                                      0.00
      9415-538          5      733     3                                                                      0.00


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      94155-120         8      960     4                                                                      0.00
      94155-120P        8      960     4                                                                      0.00
      94155-135         9      960     5                                                                      0.00
      94155-135P        9      960     5                                                                      0.00
      94155-48          5      925     3                                                                      0.00
      94155-56          9      925     5                                                                      0.00
      94155-57          6      925     3                                                                      0.00
      94155-67          7      925     4                                                                      0.00
      94155-77          8      925     4                                                                      0.00
      94155-85          8     1024     4                                                                      0.00
      94155-85P         8     1024     4                                                                      0.00
      94155-86          9      925     5                                                                      0.00
      94155-96          9     1024     5                                                                      0.00
      94155-96P         9     1024     5                                                                      0.00
      94156-48          5      925     3                                                                      0.00
      94156-67          7      925     4                                                                      0.00
      94156-86          9      925     5                                                                      0.00
      94166-101         5      969     3                                                                      0.00
      94166-141         7      969     4                                                                      0.00
      94166-182         9      969     5                                                                      0.00
      94186-383        13     1412     7                                                                      0.00
      94186-383H       15     1224     8                                                                      0.00
      94186-442H       15     1412     8                                                                      0.00
      94196-766        15     1632     8                                                                      0.00
      94204-65          8      941     4                                                                      0.00
      94204-71          8     1024     4                                                                      0.00
      94205-51          5      989     3                                                                      0.00
      94205-77          5      989     3                                                                      0.00
      94216-106         5     1024     3                                                                      0.00
      94246-383         7     1747     4                                                                      0.00
      94354-135         9     1072     5                                                                      0.00
      94354-160         9     1072     5                                                                      0.00
      94354-172         9     1072     5                                                                      0.00
      94354-200         9     1072     5                                                                      0.00
      94355-100         9     1072     5                                                                      0.00
      94355-150         9     1072     5                                                                      0.00
      94356-111         5     1072     3                                                                      0.00
      94356-155         7     1072     4                                                                      0.00
      94356-200         9     1072     5                                                                      0.00
  JCT
    MFM
      100               0        0                               110.00     17    5.25               H        5.00   HH  5 MEG
      1000              0        0                                          17                                5.00   COMMODORE 5 MEG
      1005              0        0                                          17                                7.00   COMMODORE 7 MEG
      1010              0        0                                          17                               14.00   COMMODORE 14 ME
      105               0        0                               110.00     17    5.25               H        7.00   HH 7
      110               0        0                               110.00     17    5.25               H       14.00   HH 14
      120               0        0                               110.00     17    5.25               H       20.00   HH 20
  KALOK
    ESDI
      KL332             4      615     2                          48.00     30                               36.90  30
    MFM
      KL320             4      615     2                          48.00     17    3.5                        20.91  17
      KL340             6      820     3                          33.30     17    3.5                H       41.82
    RLL
      KL330             4      615     2                          40.00     26    3.5                        31.98  26
      KL342             4      676     2                          38.90     26    3.5                H       35.15
      KL343             4      644     2                          25.00     30    3.5                H       38.64  30
      KL360             6      820     3                          33.30     26    3.5                H       63.96
      KL383             6      815     3                          33.80     26    3.5                H       63.57


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
    SCSI
      KL341             4      644     2                          30.00     30    3.5                H       38.64  30
      KL381             6      815     3                                          3.5                H       84.70
  KYOCERA
    MFM
      KC20A             4      615     2                          62.00     17    3.5                        20.91  3.5"
      KC20B             4      615     2                          65.00     17    3.5                        20.91
    RLL
      KC30A             4      615     2                          65.00     26    3.5                        31.98
      KC30B             4      615     2                          62.00     26    3.5                        31.98
      KC40GA            2     1075     1                          38.90     26    3.5                H       27.95
  LAPINE
    MFM
      3062              4      306     2       0      none         0.00     17              7                10.40
      3512              4      306     2       0      none         0.00     17              7                10.40
      3522              4      306     2       0      none         0.00     17    3.5       7                10.40  3.5"
      LT 200            4      615     2       0      none        61.00     17    3.5       7        H       20.91
      LT 2000           4      615     2       0      none        61.00     17    3.5       7        H       20.91
      T-10              2      615     1       0      none         0.00     17    3.5       7        H       10.46  3.5"
      T-20              4      615     2       0      none        61.00     17    3.5       7        H       20.91  3.5" 61.5ms  Mod
    RLL
      T-30              4      615     2       0      none        61.00     26    3.5       7        H       31.98  RLL  3.5" 61.5ms
      T-300             4      615     2       0      none        61.00     26    3.5       7        H       31.98  RLL  3.5" 61.5ms
  MAXTOR
    ESDI
      EXT-4175          7     1224     4    N/A       N/A         27.00     34    5.25               F      145.66
      EXT-4280         11     1224     6    N/A       N/A         27.00     34    5.25               F      228.89
      XT-4170E          7     1224     4    N/A       N/A         14.00     36    5.25               F      154.22   FH  35,36 sec/t
      XT-4175           7     1224     4                          27.00     34    5.25               F      145.66   FH
      XT-4230E          9     1224     5    N/A       N/A         15.00     36    5.25               F      198.29  35,36 sec/track
      XT-4280E         11     1224     6                          27.00     36    5.25               F      242.35   FH
      XT-4380E         15     1224     8                          16.00     36    5.25               F      330.48
      XT-8380E          8     1632     4                          14.50     54    5.25               F      352.51   FH
      XT-8610E         12     1632     6    N/A       N/A         16.00     54    5.25               F      528.77
      XT-8760E         15     1632     8                          16.50     54    5.25               F      660.96   FH
      XT-8800E         15     1274     8    N/A       N/A         15.00     71    5.25               F      678.40
    N/A
      LXT-200S          7     1320     4    N/A       N/A         15.00     45                              207.90
    MFM
      XT-1050           5      902     3    N/A       N/A         30.00     17                               38.34
      XT-1065           7      918     4    none      none        28.00     17    5.25      7        F       54.62   FH
      XT-1085           8     1024     4    none      none        28.00     17    5.25      7        F       69.63   FH
      XT-1105          11      918     6    none      none        27.00     17    5.25      7        F       85.83   FH
      XT-1140          15      918     8    none      none        27.00     17    5.25      7        F      117.05   FH
      XT-1140E         15     1024     8    none      none        27.00     17    5.25      7        F      130.56
      XT-2085           7     1224     4    none                  30.00     17    5.25               F       72.83   FH
      XT-2085-          7     1024     4    none                   0.00     17                               60.93
      XT-2140          11     1224     6    none                  30.00     17    5.25               F      114.44   FH
      XT-2140-         11     1024     6    none                   0.00     17                       F       95.74
      XT-2190          15     1224     8    none      none        29.00     17    5.25      7        F      156.06   FH
      XT-2190-         15     1024     8    none                   0.00     17                       F      130.56
      XT-4380          15     1224     8                          16.00     17    5.25               F      156.06   FH
      XT-8760          15     1632     8                          16.50     17    5.25               F      208.08   FH
    RLL
      XT-1120R          8     1024     4                          27.00     26    5.25               F      106.50   FH
      XT-1240R         15     1024     8                          27.00     26    5.25               F      199.68   FH
      XT-3170           9     1224     5                          30.00     26    5.25                      143.21  SCSI interface
      XT-3280          15     1224     8                          30.00                                       0.00  SCSI interface
    SCSI
      LXT-100           8      733     4                          27.00     32    3.5                        93.82


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      LXT-100S          8      733     4    N/A       N/A         27.00     31                       H       90.89
      LXT-200           7     1320     4                          15.00           3.5                       200.00
      LXT-200AT         7     1320     4    N/A       N/A         15.00     45                              207.90  33,45,53 sec. pe
      LXT-50S           4      733     2    N/A       N/A         27.00     31                       H       45.45
      RXT-800S          2              1                           0.00           5.25               F      600.00  FH WORM OPTICAL
      TAHITI            2              1                           0.00           5.25               F      650.00  FH ERASABLE OPTI
      XT-3380          15     1224     8                          27.00     34    5.25               F      312.12   FH
      XT-4170S          7     1224     4    N/A       N/A         14.00     36    5.25               F      154.22   FH
      XT-4280S         11     1224     6                          27.00     36    5.25               F      242.35   FH
      XT-4380S         15     1224     8                          16.00     36    5.25               F      330.48   FH
      XT-8380S          8     1632     4                          14.50     54    5.25               F      352.51   FH
      XT-8760S         15     1632     8                          16.50     62    5.25               F      758.88   FH
  MEMOREX
    MFM
      321               2      320     1     128      none         0.00     17              0                 5.44
      322               4      320     2     128      none         0.00     17              0                10.88
      323               6      320     3     128      none         0.00     17              7                16.32
      324               8      320     4     128      none         0.00     17              7        F       21.76
      450               2      612     1     350      none         0.00     17              7                10.40
      512               3      961     2     480      none         0.00     17              7                24.51
      513               5      961     3     480      none         0.00     17              7                40.84
      514               6      961     3     480      none         0.00     17              7                49.01
  MICRO STORAGE
    Other
      MS 212            0        0                                 0.00                                       0.00
  MICROPOLIS
    ESDI
      1352              2     1024     1                          23.00     36    5.25                       36.86
      1352A             3     1024     2                          23.00     36    5.25                       55.30
      1353              4     1024     3                          23.00     36    5.25               F       73.73   FH
      1353A             5     1024     3                          23.00     36    5.25               F       92.16   FH
      1354              6     1024     3                          31.30           5.25               F      113.00
      1354              6     1024     4                          23.00     36    5.25               F      110.59   FH
      1354A             7     1024     4                          23.00     36    5.25               F      129.02   FH
      1355              8     1024     5                          23.00     36    5.25               F      147.46  ESDI
      1516-10S         10     1840     5                          13.50     72    5.25               F      662.40   FH
      1517-13          13     1925     7                          14.00     72    5.25               F      900.90   FH
      1518-14          14     1925     8                          14.00     72    5.25               F      970.20   FH
      1518-15          15     1925     8                          14.00     72    5.25               F     1039.50   FH
      1556-11          11     1224     6                          18.00     36    5.25               F      242.35   FH
      1557-12          12     1224     7                          18.00     36    5.25               F      264.38   FH
      1557-13          13     1224     7                          18.00     36    5.25               F      286.42   FH
      1557-14          14     1224                                18.00     36    5.25               F      308.45   FH
      1557-15          15     1224                                18.00     36    5.25               F      330.48   FH
      1558-14          14     1224     7                          26.30           5.25               F      315.00
      1558-15          15     1224     8                          26.30           5.25               F      338.00
      1566-11          11     1632     6                          16.00     54    5.25               F      484.70   FH
      1567-12          12     1632                                16.00     54    5.25               F      528.77   FH
      1567-13          13     1632     7                          16.00     54    5.25               F      572.83   FH
      1568-14          14     1632     8                          16.00     54    5.25               F      616.90   FH
      1568-15          15     1632     8                          16.00     54    5.25               F      660.96   FH
      1653-4            4     1249     2                          24.30           5.25               H       92.00
      1653-4            4     1249     3                          16.00     36    5.25               H       89.93   HH
      1653-5            5     1249     3                          16.00     36    5.25               H      112.41   HH
      1653-5            4     1249     3                          24.30           5.25               H      115.00
      1654-6            6     1249     3                          24.30           5.25               H      138.00
      1654-6            6     1249     4                          16.00     36    5.25               H      134.89   HH
      1654-7            7     1249     4                          16.00     36    5.25               H      157.37   FH
      1663-4            4     1781     3                          14.00     54    5.25               H      192.35   HH
      1663-5            5     1781     3                          14.00     54    5.25               H      240.44   HH


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      1664-6            6     1781     4                          14.00     54    5.25               H      288.52   HH
      1664-7            7     1781     4                          14.00     54    5.25               H      336.61   FH
      1743-5            5     1140                                15.00     48    3.5                       136.80      28-48 SPT
      1744-6            6     1140                                15.00     48    3.5                       164.16      28-48 SPT
      1744-7            7     1140                                15.00     48    3.5                       191.52      28-48 SPT
      1745-8            8     1140                                15.00     48    3.5                       218.88      28-48 SPT
      1745-9            9     1140                                15.00     48    3.5                       246.24      28-48 SPT
    MFM
      1302              3      830           400                   0.00     17    5.25               F       21.16   FH
      1303              5      830           400      none         0.00     17    5.25      7        F       35.27   FH
      1304              6      830           400      none         0.00     17    5.25      7        F       42.33   FH
      1323              4     1024     3    none      none        28.00     17    5.25      7        F       34.82   FH
      1324              6     1024     4    none      none        28.00     17    5.25      7        F       52.22   FH
      1325              8     1024     5    none      none        28.00     17    5.25      7        F       69.63   FH
      1333              4     1024          none      none        28.00     17    5.25      7        F       34.82   FH
      1334              6     1024     4    none      none        30.00     17    5.25      7        F       52.22   FH
      1335              8     1024     5    none      none        30.00     17    5.25      7        F       69.63   FH
      1353              4     1024     2    none      none        28.00     17    5.25      7        F       34.82   FH
      1354              6     1024          none      none        30.00     17    5.25      7        F       52.22   FH
      1355              8     1024     5    none      none        30.00     17    5.25      7        F       69.63   FH
      1551              7     1024          none      none        30.00     17    5.25      7        F       60.93   FH
      1554             11     1224          none      none        30.00     17    5.25      7        F      114.44   FH
      1555             12     1224          none      none        30.00     17    5.25      7        F      124.85   FH
      1556             13     1224          none      none        30.00     17    5.25      7        F      135.25   FH
      1557             14     1224          none      none        30.00     17    5.25      7        F      145.66   FH
      1558             15     1224          none      none        30.00     17    5.25      7        F      156.06   FH
    RLL
      1323A             5     1024     3    none      none        28.00     26    5.25      7        F       66.56   FH RLL
      1324A             7     1024     4    none      none        28.00     26    5.25      7        F       93.18   FH RLL
      1333A             5     1024     3    none      none        28.00     26    5.25      7        F       66.56   FH RLL
      1334A             7     1024          none      none        28.00     26    5.25      7        F       93.18   FH RLL
      1353A             5     1024     3    none      none        28.00     26    5.25      7        F       66.56   FH RLL
      1354A             7     1024     4    none      none        28.00     26    5.25      7        F       93.18   FH RLL
    SCSI
      1373              4     1024     3                          23.00     36    5.25               F       73.73   FH
      1373A             5     1024     3                          23.00     36    5.25               F       92.16   FH
      1374              6     1024     4                          23.00     36    5.25               F      110.59   FH
      1374A             7     1024     4                          23.00     36    5.25               F      129.02   FH
      1375              8     1024     5                          23.00     36    5.25               F      147.46   FH
      1576-11          11     1220     6                          18.00     36    5.25               F      241.56   FH
      1577-12          12     1220     7                          18.00     36    5.25               F      263.52   FH
      1577-13          13     1220     7                          18.00     36    5.25               F      285.48   FH
      1578-14          14     1220     8                          18.00     36    5.25               F      307.44   FH
      1578-15          15     1220     8                          18.00     36    5.25               F      329.40   FH
      1586-11          11     1628     6                          16.00     54    5.25               F      483.52   FH
      1587-12          12     1628                                16.00     54    5.25               F      527.47   FH
      1587-13          13     1628     7                          16.00     54    5.25               F      571.43   FH
      1588-14          14     1628     8                          16.00     54    5.25               F      615.38   FH
      1588-15          15     1628     8                          16.00     54    5.25               F      659.34   FH
      1597-10S         10     1834                                13.50     72    5.25               F      660.24   FH
      1597-13          13     1919     7                          14.00     72    5.25               F      898.09   FH
      1598-14          14     1919     8                          14.00     72    5.25               F      967.18   FH
      1598-15          15     1919     8                          14.00     72    5.25               F     1036.26   FH
      1673-4            4     1249     3                          16.00     36    5.25               H       89.93   HH
      1673-5            5     1249     3                          16.00     36    5.25               H      112.41   HH
      1674-6            6     1249     4                          16.00     36    5.25               H      134.89   HH
      1674-7            7     1249     4                          16.00     36    5.25               H      157.37   HH
      1683-4            4     1776     3                          14.00     54    5.25               H      191.81   HH
      1683-5            5     1776     3                          14.00     54    5.25               H      239.76   HH
      1684-6            6     1776     4                          14.00     54    5.25               H      287.71   HH


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      1684-7            7     1776     4                          14.00     54    5.25               H      335.66   HH
      1773-5            5     1140                                15.00     48    3.5                H      136.80   HH 28-48
      1774-6            6     1140                                15.00     48    3.5                H      164.16   HH 28-48
      1774-7            7     1140                                15.00     48    3.5                H      191.52   HH 28-48
      1775-8            8     1140                                15.00     48    3.5                H      218.88   HH 28-48
      1775-9            9     1140                                15.00     48    3.5                H      246.24   HH 28-48
  MICROSCIENCE
    ESDI
      5100              7      855     4                          18.00     36    3.5                H      107.73   HH
      7040              3      855                                18.00     36    3.5                H       46.17   HH
      7100              7      855     4                          18.00     36    3.5                H      107.73   HH
      HH-2012           4      306                                 0.00                                       0.00
      HH-2085           0        0                                                                            0.00
      HH-2120           7     1024     4                          28.00     33    5.25               H      118.27   HH
      HH-2160           7     1276     4                          18.00     35    3.5                H      156.31   HH
    MFM
      HH-1050           5     1024     3    none      none        28.00     17    5.25      0        H       43.52   HH
      HH-1075           7     1024                                28.00     17    5.25               H       60.93   HH
      HH-1090           7     1314     4                          28.00     17    5.25               H       78.18   HH
      HH-312            4      306          none      none         0.00     17              0                10.40
      HH-315            2      612          none      none         0.00     17              0                10.40
      HH-325            4      612          none      none        80.00     17              0                20.81
      HH-4050           5     1024     3                          18.00     17    3.5                H       43.52   HH
      HH-4070           7     1024     4                          18.00     17    3.5                H       60.93   HH
      HH-612            4      306          none      none         0.00     17              0        H       10.40
      HH-625            4      612                                          17                               20.81
      HH-712            2      612          none      none       105.00     17    5.25      0        H       10.40   HH
      HH-712A           2      612                                 0.00     17                               10.40
      HH-725            4      612          none      none       105.00     17    5.25      0        H       20.81  *DTC:Revision C
      HH-825            4      612                                65.00     17    5.25               H       20.81   HH
    RLL
      HH-1060           5     1024     3                          28.00     26    5.25               H       66.56   HH
      HH-1095           7     1024                                28.00     26    5.25               H       93.18   HH
      HH-1120           7     1314     4                          28.00     26    5.25               H      119.57   HH
      HH-330            4      612                                 0.00     26                               31.82
      HH-4060           5     1024     3                          18.00     26    3.5                H       66.56   HH
      HH-4090           7     1024     4                          18.00     26    3.5                H       93.18   HH
      HH-738            4      612                               105.00     26    5.25               H       31.82   HH
      HH-830            4      615                                65.00     26    5.25               H       31.98   HH
    SCSI
      6100              7      855     4                          27.80           3.5                H      110.30
      6100              7      855     4                          18.00     36    3.5                H      107.73   HH
      HH-1080           0        0                                                                            0.00
      HH-3120           5     1314     3                          28.00     36    5.25               H      118.26   HH
      HH-3120           5     1314     3                          27.80           5.25               H      121.00
      HH-3160           7     1314     4                          27.80           5.25               H      169.50
  MINISCRIBE
    ESDI
      3085E             3     1270     2                          17.00           5.25               H        0.00   HH
      3130E             5     1250     3                          17.00           5.25               H        0.00   HH
      3180E             7     1250     4                          17.00           5.25               H      150.00   HH   ESDI/SCSI
      9000E            15     1224     8                          24.30     35    5.25               F      321.30
      9230              9     1224                                16.00     35    5.25               F      192.78   FH   ESDI/SCSI
      9230E             9     1224                                17.00     35    5.25               F      192.78   FH   ESDI/SCSI
      9380             15     1224                                16.00     35    5.25               F      321.30   FH   ESDI/SCSI
      9380E            15     1224                                17.00     35    5.25               F      321.30   FH   ESDI/SCSI
      9424E             8     1661                                17.00     35    5.25               F      232.54   FH   ESDI/SCSI
      9780E            15     1661                                17.00     53    5.25               F      660.25   FH   ESDI/SCSI
    N/A
      7040A             2     1170     1    N/A       N/A         19.00     36    3.5                T       42.12


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      7080A             4     1170     4                          19.00     36                               84.24
      8051A             4      745          N/A       N/A         28.00     28    3.5      N/A       H       41.72
      8051AT            4      745     2                          28.00     28    3.5                H       41.72  AT BUS
      8225A             4      615          N/A                   40.00     17    3.5                H       20.91
      8225AT            2      745     1    N/A                   28.00     28    3.5                H       20.86   FH   ESDI/SCSI
      8450AT            4      745     2                          40.00     28    3.5                F       41.72   FH   ESDI/SCSI
    MFM
      1006              2      153     1     128                 179.00     17    5.25                        2.60
      1006              2      306     1     128      306        179.00     17    5.25               F        5.20  Upgrade??
      1012              4      306     2     128      306        179.00     17    5.25               F       10.40  Upgrade??
      1012              4      153     2     128                 179.00     17                       F        5.20
      2006              2      306     1     128      306                   17    5.25               F        5.20
      2006              2      307           128                            17                                5.22
      2006              8      512                                 0.00     17                               34.82
      2012              4      306           128      306         85.00     17    5.25               F       10.40
      3006              2      306                    128          0.00     17                                5.20
      3012              2      612     1     256      256        155.00     17    5.25               H       10.40
      3053              5     1024     3                          25.00     17    5.25               H       43.52   HH
      3053II            5     1024     3                          25.00     17    5.25               H       43.52   HH
      3085              7     1170     4                          18.40     17    5.25               H       69.61
      3085              7     1170     4     512       off        20.00     17    5.25      7        F       69.61   HH
      3130              5     1250     3                          17.00     17    5.25               H       53.13   HH
      3180              7     1250     4                          17.00     17    5.25               H       74.38   HH   ESDI/SCSI
      3212              2      612     1     128      off         85.00     17    5.25     7         H       10.40   HH
      3212 PLUS         2      612     1     128                  53.00     17    5.25               H       10.40   HH
      3412              4      306     2     128      128         60.00     17    5.25               H       10.40
      3425              4      612     2       0       off        85.00     17    5.25      7        H       20.81   HH
      3425 PLUS         4      612     2               306        53.00     17    5.25               H       20.81   HH
      3650              6      809     3     809      128         61.00     17    5.25      7        H       41.26   HH
      3650F             6      809           809       off        46.00     17    5.25      7        H       41.26   HH
      4010              2      480     1     128      480        133.00     17    5.25               F        8.16
      4020              4      480     2     128      480        133.00     17    5.25               F       16.32
      5330              6      480           128                            17                               24.48
      5338              6      612           306                            17                               31.21
      5440              8      480           128                            17                               32.64
      5451              8      612           306                            17                               41.62
      6032              3     1024     2     512       off        28.00     17    5.25      7        F       26.11
      6053              5     1024           512       off        28.00     17    5.25      7        F       43.52   FH
      6074              7     1024           512                  28.00     17    5.25               F       60.93   FH
      6085              8     1024     4     512       off        28.00     17    5.25      7        F       69.63   FH
      6212              2      615             0       off         0.00     17              7                10.46
      7426              4      612           613                            17                               20.81
      8212              2      615     1     128       off        68.00     17    3.5       7                10.46
      8225XT            4      615     2    N/A                   68.00     17    3.5                        20.91
      8412              4      306     2     128       off        68.00     17    3.5       7        H       10.40
      8425              4      615           128       off        68.00     17    3.5       7        H       20.91
      8425F             4      615           128       off        40.00     17    3.5       7        H       20.91  RLL
      8425XT            4      615          N/A                   61.00     17    3.5                H       20.91
      8438XT            4      615                                61.00     17    3.5                        20.91
    Other
      1302              0        0                                 0.00                                       0.00
      3312              0        0                                 0.00                              H        0.00
    RLL
      3438              4      613                                85.00     26    5.25               H       31.88   HH
      3438 PLUS         4      613                                53.00     26    5.25               H       31.88   HH
      3650R             6      809     3     128      809         61.00     26    5.25               H       63.10
      3675              6      809     3       0       off        61.00     26    5.25      7        H       63.10   HH
      6079              5     1024           512       off        28.00     26    5.25      7        F       66.56   FH
      6128              8     1024           512       off        28.00     26    5.25      7        F      106.50
      8051              5      981     3                                    26    3.5                        63.77


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      8225              2      771           128                  45.00     26    3.5                H       20.05
      8225XT            2      805     1    N/A                   68.00     26    3.5                H       20.93
      8434F             4      615                                40.00     26    3.5                        31.98
      8438              4      615           128       off        68.00     26    3.5       7        H       31.98
      8438F             4      615           128       off        40.00     26    3.5       7                31.98  RLL
      8450              4      771     2     128                  45.00     26    3.5                H       40.09
      8450A             4      745     2    N/A                   40.00     28    3.5                H       41.72
      8450XT            4      805     2    N/A       N/A         45.00     26    3.5                H       41.86
    SCSI
      3085S             3     1255     2                          17.00           5.25                        0.00
      3130S             5     1255     3                          17.00           5.25                        0.00
      3180S             7     1255     4                          17.00           5.25               H      160.00
      7040S             2     1156     1                          27.60     36    3.5                T       41.62
      7080S             4     1156     2                          27.60           3.5                T       80.70
      8051S             4      745     2                          28.00     28    3.5                H       41.72
      8425S             4      615          N/A                   68.00     17    3.5                H       20.91
      9000S            15     1220     8                          24.30     36    5.25               F      329.40
      9380S            15     1224                                16.00     36    5.25               F      330.48
      9424S             8     1661                                17.00     36    5.25                      239.18
      9780S            15     1661                                17.00     53    5.25                      660.25
  MITSUBISHI
    ESDI
      MR 5310E          5      977     3    none                  28.00     17    5.25               H       41.52   HH
    MFM
      MR 521            2      612                                85.00     17    5.25               H       10.40   HH
      MR 522            4      612           300                  85.00     17    5.25               H       20.81   HH
      MR 533            3      971          none                   0.00     17    5.25               H       24.76   HH
      MR 535 MFM        5      971     3    none                  28.00     17    5.25               H       41.27   HH
    RLL
      M 4870           12     1024     8    none                  20.00     40    8                  O      245.76  SMD Interface
      MR 535 RLL        5      971     3    none                  28.00     26    5.25               H       63.12   HH
    SCSI
      MW-562-A31      108             54    N/A       N/A                         5.25               T     ****.**  Tower WORM Libra
      MW-562-B31      300              0    N/A       N/A                         5.25               T     ****.**  Tower WORM Libra
      MW-5U1            2              1    N/A       N/A         63.00           5.25               F      600.00  WORM/kits for DO
  MMI
    MFM
      312               4      306     2     128      none         0.00     17              7                10.40
      M 106             2      306     1     128      none        75.00     17    3.5       7                 5.20
      M 112             4      306     2     128      none        75.00     17    3.5       7                10.40
      M 125             8      306     4     128      none        75.00     17    3.5       7                20.81
      M 206             2      306     1     128      none         0.00     17              7                 5.20
      M 212             4      306     2     128      none        70.00     17    5.25      7                10.40
      M 225             8      306     4     128      none        75.00     17    5.25      7                20.81
      M 306             2      306     1     128      none        75.00     17    3.5       7                 5.20
      M 312             4      306     2     128      none        75.00     17    5.25      7                10.40
      M 325             8      306     4     128      none        75.00     17    5.25      7                20.81
  NEC
    ESDI
      D 5652           10      823     5                          23.00     17    5.25               H       69.95   HH
      D 5655            7     1224     4                          18.00     35    5.25               H      149.94
      D 5662           15     1224     8                          18.00     35    5.25               F      321.30
    MFM
      D 3126            4      615     2     256      none        85.00     17    3.5       7                20.91
      D 3142            8      642     4                          28.00     17    3.5                        43.66
      D 5114            2      306     1                          85.00     17                                5.20
      D 5124            4      306     2    none                  85.00     17    5.25               H       10.40   HH
      D 5126            4      615     2     128      none        85.00     17    5.25      7        H       20.91   HH
      D 5126H           4      615     2     128      none        40.00     17    5.25      7        H       20.91   HH
      D 5127            4      615     2     128      none         0.00     17    5.25      7        H       20.91   HH


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      D 5146            8      615     4     128      none        85.00     17    5.25      7        H       41.82   HH
      D 5146H           8      615     4     128      none        40.00     17    5.25      7        H       41.82   HH    RLL
      D 5147            8      615     4     128      none         0.00     17    5.25      7        H       41.82   HH
      D 5147H           8      615     4     128      none         0.00     17    5.25      7        H       41.82   HH
    Other
      D 3146H           8      615     4                                                                      0.00
      D 3661            7      915     4                          20.00           3.5                       146.90
      D 5127H           4      615     2                                                                      0.00
      D 5452           10      823     5                                                                      0.00
      D 5682           15     1633     8                                    52                              636.87
  NEI
    MFM
      RD 3127           2      612     1                           0.00     17                               10.40
      RD 3255           4      612     2                           0.00     17                               20.81
      RD 4127           4      306     2                           0.00     17                               10.40
      RD 4255           8      306     4                           0.00     17                               20.81
  NEWBURY DATA
    ESDI
      NDR 4175          7     1224     4    none                  28.00     36    5.25               F      154.22   FH
      NDR 4380         15     1224     8    none                  28.00     36    5.25               F      330.48   FH
    MFM
      1065              7      918     4                          25.00     17    5.25               F       54.62   FH
      1085              8     1025     4    none                  26.00     17    5.25               F       69.70   FH
      1105             11      918     6    none                  25.00     17    5.25               F       85.83   FH
      1140             15      918     8    none                  25.00     17    5.25               F      117.05   FH
      1140-            15     1024     8                          25.00     17    5.25               F      130.56   FH
      2190             15      918     8    none                   0.00     17    5.25               F      117.05   FH
      2190-            15     1024     8    none                  28.00     17    5.25               F      130.56   FH
      320               4      615     2    none                   0.00     17                               20.91
      NDR 340           8      615     4    none                  40.00     17    3.5                        41.82
      NDR 360           8      615     4                                    17                               41.82
    Other
      NDR 2190         15     1224     8                                                                      0.00
      NDR 4170          7     1224     4                                                                      0.00
      NDR 4380         15     1224     8                                                                      0.00
    SCSI
      NDR 3170S         9     1224     5    none                  28.00     26    5.25               F      143.21   FH
      NDR 3280S        15     1224     8    none                  28.00     26    5.25               F      238.68   FH
      NDR 4380S        15     1224     8    none                  28.00     34    5.25               F      312.12   FH
  NIPPON
    MFM
      NP02-13           4      306     2                          68.00     17    5.25               H       10.40
  NPL
    MFM
      NP 03-6           2      306     1                           0.00     17                                5.20
    RLL
      NP 03-13          4      306     2                           0.00     26                               15.91  315 RLL
    SCSI
      NP 02-26S         4      640     2                           0.00                                       0.00
  OKIDATA
    RLL
      OD 526            4      615     2                           0.00     26                       H       31.98
      OD 540            6      615     3                           0.00     26                       H       47.97
  OLIVETTI
    MFM
      HD662/11          2      612     1                                    17                               10.40
      HD662/12          4      612     2                                    17                               20.81
  OTARI
    MFM
      C 214             4      306     2     128       128                  17                               10.40


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      C 519             6      306     3     128       128                  17                               15.61
      C 526             8      306     4     128       128                  17                               20.81
  PANASONIC
    MFM
      JU-116            4      615     2                          85.00     17    3.5                        20.91
      JU-128            7      733     4                          35.00     17    3.5                        43.61
  PRAIRETEK
    Other
      Praire 120        2      615     1                          23.00     34    2.5                H       20.91  New Glass media(
      Praire 220        4      612     2                          28.00     17    2.5                H       20.81  New Glass media(
      Praire 240        4      615     2                          28.00     34    2.5                H       41.82  New Glass media(
  PRIAM
    ESDI
      617               7     1225     4                          20.00           5.25               F        0.00   FH
      628              11     1225     6                          18.00     35    5.25               F      235.81   FH
      638              15     1225     8                          20.00     34    5.25               F      312.38   FH
    MFM
      502               7      755     4                                    17                               44.92
      504               7      755     4                                    17                               44.92
      514              11     1224     6                          22.00     17    5.25               F      114.44   FH
      519              15     1224     8    none                  22.00     17    5.25               F      156.06   FH
      ID 130           15     1224     8    none      none         0.00     17              7        F      156.06
      S 14             11     1224     6    none      none         0.00     17              7        F      114.44
      S 19             15     1224     8    none      none         0.00     17              7        F      156.06
      V 150             5      987     3    none      none         0.00     17              7                41.95
      V 160             5     1166     3    none                   0.00     17                       F       49.55
      V 170             7      987     4    none      none         0.00     17              7                58.73
      V 185             7     1166     4    none                   0.00     17                       F       69.38
    Other
      617              11      752     6                                    17                               70.31
      623              15      752     8                                    17                               95.88
      630              15     1224     8                                    17                              156.06
    RLL
      V 130             3      987     2    none      none         0.00     26              7                38.49
      V 160             5     1166     3    none      none         0.00     26              7                75.79
      V 170             7      987     4    none      none         0.00     26              7                89.82
    SCSI
      717               7     1225     4                          20.00     36    5.25               F      154.35   FH
      728              11     1225     6                          20.00     36    5.25               F      242.55   FH
      738              15     1225     8                          20.00     36    5.25               F      330.75   FH
  PTI
    MFM
      PT-225            4      615     2     300      none         0.00     17              7                20.91
      PT-234            4      820     2                          35.00     17                               27.88
      PT-338            6      615     3    none      none        35.00     17    3.5       7        H       31.36
      PT-351            6      820     3                          35.00     17    3.5                H       41.82
    Other
      PT-325R           0        0                                 0.00                                       0.00
    RLL
      PT-238A           4      615     2                          35.00     26                               31.98   FOR AT BUS
      PT-238R           4      615     2     300      none         0.00     26              7                31.98  RLL
      PT-251A           4      820     2                          35.00     26                               42.64   FOR AT BUS
      PT-251R           4      820     2                          35.00     26    5.25                       42.64
      PT-338R           6      615     3    none      none         0.00     26              7        H       47.97  RLL
      PT-357A           6      615     3                          35.00     26    3.5                        47.97   FOR AT BUS
      PT-357R           6      615     3    none      none        35.00     26    3.5       7        H       47.97  RLL
      PT-376A           6      820     3                          35.00     26    3.5                        63.96   FOR AT BUS
      PT-376R           6      820     3                          35.00     26    3.5                        63.96
      PT-4102R          8      820     4                          35.00     26    3.5                        85.28



  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
    SCSI
      PT-238S           4      615     2                          35.00     26    5.25                       31.98
      PT-251S           4      820     2                          35.00     26    5.25                       42.64
      PT-357S           6      615     3                          35.00     26    3.5                        47.97
      PT-376S           6      820     3                          35.00     26    3.5                        63.96
  QUANTUM
    ESDI
      PRO100            0        0                                19.00           3.5                         0.00
      PRO145            0        0                                19.00           3.5                         0.00
    MFM
      Q-510             2      512     1     256      none        17.00     17              7                 8.70
      Q-520             4      512     2     256      none        17.00     17              7                17.41
      Q-530             6      512     3     256      none        17.00     17              7                26.11
      Q-540             8      512     4     256      none        17.00     17              7                34.82
    RLL
      LPS 105AT         4     1219     2                                    42    3.5                T      102.40
      LPS 52AT          2     1219     1                                    42    3.5                T       51.20
      PRO120            0        0                                19.00     26    3.5                         0.00    AT BUS
      PRO170            0        0                                19.00     26    3.5                         0.00    AT BUS
      PRO40AT           3        0     2                          19.00     26    3.5                        42.00    AT BUS
      PRO80AT           6        0     3                          19.00     26    3.5                         0.00    AT BUS
    SCSI
      LPS 105S          4     1219     2                                          3.5                T      105.00
      LPS 52S           2     1219     1                                          3.5                T       52.00
      PRO-105S          6     1019     3                                          3.5                H      105.00
      PRO-170S          7     1123     4                                          3.5                H      168.00
      PRO-210S          7     1156     4                                          3.5                H      210.00
      PRO-40S           3      834     2                                          3.5                H       42.00
      PRO-80S           6      834     3                                          3.5                H       84.00
      PRO120S           5     1123     3                          19.00     48    3.5                H      134.76   120
      PRO170            0        0                                19.00           3.5                       168.00  168 meg
      PRO40             0        0                                19.00           3.5                         0.00   42
      PRO80             0        0                                19.00           3.5                         0.00   84
      Q-160            12        0     6                          26.00           5.25               H        0.00   HH
      Q-250             4      823     2                          26.00           5.25               H        0.00   HH
      Q-280             6      823     3                          26.00           5.25               H        0.00   HH
  QUME
    Other
      R 200             0        0                                 0.00                                       0.00
      R 300             0        0                                 0.00                                       0.00
  RICOH
    MFM
      5130              2      612     1     400      none        85.00     17              7                10.40
      RH-5260           2      615     1                          85.00     17                               10.46   REMOV.
    SCSI
      RH-5261           2      612     1                          85.00                                       0.00   REMOV.
  RMS
    MFM
      RMS 503           2      153     1      77        77         0.00     17              0                 2.60
      RMS 506           4      153     2      77        77         0.00     17              0                 5.20
      RMS 512           8      153     4      77        77         0.00     17              0                10.40
  RODIME
    MFM
      RO 101            2      192     1       0        96         0.00     17    5.25      7        F        3.26   FH
      RO 102            4      192     2       0        96         0.00     17    5.25      7        F        6.53   FH
      RO 103            6      192     3       0        96        55.00     17    5.25      7        F        9.79   FH
      RO 104            8      192     4       0        96         0.00     17    5.25      7        F       13.06   FH
      RO 201            2      321     1       0       132        85.00     17    5.25      7        F        5.46   FH
      RO 201E           2      640     1       0      none        55.00     17    5.25      7        F       10.88   FH
      RO 202            4      321     2       0       132        85.00     17    5.25      7        H       10.91   HH


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      RO 202E           4      640     2       0      none        55.00     17    5.25      7        F       21.76   FH
      RO 203            6      321     3       0       132        85.00     17    5.25      7        H       16.37   HH
      RO 2031           6      320     3                                    17                               16.32
      RO 203E           6      640     3       0      none        55.00     17    5.25      7        F       32.64   FH
      RO 204            8      321     4       0       132        85.00     17    5.25      7        F       21.83   FH
      RO 204E           8      640     4       0      none        55.00     17    5.25      7        F       43.52   FH
      RO 206                                                       0.00     17
      RO 251            2      306     1                          85.00     17    5.25               H        5.20   HH
      RO 252            4      306     2     128        64        85.00     17    5.25               H       10.40   HH
      RO 252F           4      306     2                           0.00     17                       H       10.40
      RO 3000A-XLA      5      992     3                                    17                               42.16
      RO 3045           5      872     3       0      none        28.00     17              7                37.06
      RO 3055           6      872     3       0      none        28.00     17              7        H       44.47
      RO 3065           7      872     4                          28.00     17                               51.88
      RO 351            2      306     1                          85.00     17                                5.20
      RO 365            4      612     2                                    17    3.5                        20.81
      RO 5065           5        0     3                          28.00     17    5.25               H        0.00   HH
      RO 5065           5     1224     3                                    17                               52.02
      RO 5090           7     1224     4                          28.00     17    5.25               H       72.83   HH
    RLL
      RO 3000A-NAT      5      625     3                                    26                               40.63
      RO 3060R          5      750     3                                    26                               48.75
      RO 3075R          6      750     3                                    26                               58.50
      RO 3085R          7      750     4                                    26                               68.25
      RO 352            4      306     2     128        64        85.00     26    3.5       7        H       15.91   HH
      RO 5090R          7     1224     4                                    26                              111.38
    SCSI
      RO 3057S          5      680     3                          28.00                                       0.00
      RO 3070S          0        0                                28.00                                       0.00
      RO 3085S          7      750     4                          28.00                                       0.00
      RO 5040           3     1224     2                          28.00                                       0.00
      RO 5075S          0        0                                28.00           5.25               H        0.00   HH
      RO 5125S          5     1219     3                          28.00           5.25               H        0.00   HH
      RO 5180S          7     1219     4                          28.00           5.25               H        0.00   HH
      RO 652A           0        0                                85.00                                       0.00
      RO 652B           4      306     2                          85.00                                       0.00
      RO 752A           0        0                                85.00           5.25               H        0.00   HH
  SEAGATE
    ESDI
      ST-1111E          5     1068     3    N/A       N/A         15.00     36                               96.12
      ST-1156E          7     1072     4    N/A       N/A         15.00     36                              135.07
      ST-1201E          9     1072     5    N/A       N/A         15.00     36                              173.66
      ST-2106E          5     1024     3    N/A       N/A         18.00     34                               87.04
      ST-2182E          4     1453     3    N/A       N/A         16.00     54                              156.92
      ST-2383E          7     1747     4    N/A       N/A         16.00     54                       H      330.18
      ST-4182E          9      969     5    N/A       N/A         16.50     36                              156.98
      ST-4192E          8     1147     4                          17.00     36    5.25      7        F      165.17  SCSI interface
      ST-4383E         13     1412     7    N/A       N/A         18.00     34                       F      312.05
      ST-4384E         15     1224     8    N/A       N/A         14.50     34                       F      312.12
      ST-4442E         15     1412     8    N/A       N/A         16.00     34                       F      360.06
      ST-4766E         15     1632     8    N/A       N/A         16.00     53                       F      648.72
    N/A
      ST-1057A          3     1024     2                          20.00     26    3.5                H       39.94
      ST-1090A          5     1072     4    N/A       N/A         15.00     29             N/A               77.72  SWIFT 94354-90
      ST-1102A          5     1024     3                          20.00     26    3.5                H       66.56
      ST-1111A          5     1072     3    N/A       N/A         15.00     36                               96.48
      ST-1126A          7     1072     4    N/A       N/A         15.00     29                              108.81
      ST-1133A          5     1272     3    N/A       N/A         15.00     36                              114.48
      ST-1144A          7     1024     4                          20.00     26    3.5                H       93.18
      ST-1156A          7     1072     4    N/A       N/A         15.00     36                              135.07


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      ST-1162A          9     1072     5    N/A       N/A         15.00     29                              139.90
      ST-1186A          7     1272     4    N/A       N/A         15.00     36                              160.27
      ST-1201A          9     1072     5    N/A       N/A         15.00     36                              173.66
      ST-1239A          9     1272     5    N/A       N/A         15.00     36                              206.06
      ST-125A           4      404     2    none      none        28.00     26    3.5       7        H       21.01  RLL AT 16 bit
      ST-125A-1         4      404     2    none      none        28.00     26    3.5       7        H       21.01  RLL AT 16 bit
      ST-138A           4      604     2    none      none        40.00     26    3.5       7        H       31.41  RLL AT 16 bit
      ST-138A-1         4      604     2    none      none        28.00     26    3.5       7        H       31.41  RLL AT 16 bit
      ST-157A           6      539     3    none      none        40.00     26    3.5       7        H       42.04  RLL  AT 16 bit
      ST-157A-1         6      539     3    none      none        28.00     26    3.5       7        H       42.04  RLL  AT 16 bit
      ST-157R-1         6      615     3    none      none        28.00     26    3.5       7        H       47.97  RLL  Old designa
      ST-2274A          5     1747     3    N/A       N/A         16.00     54                       H      235.84
      ST-2383A          7     1747     4    N/A       N/A         16.00     54                       H      330.18
      ST-274A           5      948     3    N/A       N/A         29.00     26                       H       61.62
      ST-280A           5     1032     3    N/A       N/A         29.00     26                       H       67.08
      ST-3057A          3     1024     2                          20.00     26    3.5                T       39.94
      ST-3096A          3     1024     2                          20.00     26    3.5                T       39.94
    MFM
      ST-1100           9     1072     5    N/A       N/A         15.00     17                               82.01
      ST-124            4      615     2    N/A       N/A         40.00     17                               20.91
      ST-125            4      615     2    none      none        40.00     17    3.5       7        H       20.91   Old designation
      ST-125-1          4      615     2    none      none        28.00     17    3.5       7        H       20.91
      ST-138            6      615     3    none      none        40.00     17    3.5       7        H       31.36   Old designation
      ST-138-1          6      615     3    none      none        28.00     17    3.5       7        H       31.36
      ST-151            5      977     3    none      none        24.00     17    3.5       7        H       41.52  23ms 3.5"
      ST-206            2      306     1     128                   0.00     17    5.25               F        5.20   FH
      ST-212            4      306     2     128       128         0.00     17    5.25      7        F       10.40   FH
      ST-213            2      615     1     300      none         0.00     17    5.25      7        F       10.46   FH
      ST-225            4      615     2     300      none        65.00     17    5.25      7        H       20.91   HH
      ST-251            6      820     3    none      none        40.00     17    5.25      7        H       41.82   HH
      ST-251-1          6      820     3    none      none        28.00     17    5.25      7        H       41.82   HH
      ST-252            6      820     3                          48.30     17    5.25               H       41.82
      ST-253            5      989     3    N/A       N/A         28.00     17                       H       42.03
      ST-4026           4      615     2     300      none         0.00     17    5.25      5        F       20.91   FH
      ST-4030           5      733     3               354         0.00     17    5.25               F       31.15
      ST-4038           5      733     3     300      none        40.00     17    5.25      7        F       31.15   FH
      ST-4038M          5      733     3    none                  40.00     17    5.25               F       31.15
      ST-4051           5      977     3    none      none        40.00     17    5.25      7        F       41.52   FH
      ST-4053           5     1024     3    none                  28.00     17    5.25               F       43.52   FH
      ST-406            2      306     1     128       128         0.00     17    5.25      7        F        5.20   FH
      ST-4085           8     1024     5    N/A       N/A         28.00     17                               69.63
      ST-4086           9      925     5    N/A       N/A         28.00     17                               70.76
      ST-4096           9     1024     5    none      none        28.00     17    5.25      7        F       78.34   FH
      ST-4097           9     1024     5    N/A       N/A         28.00     17                               78.34
      ST-412            4      306     2     128       128         0.00     17    5.25      7        F       10.40   FH
      ST-419            6      306     3     128       128         0.00     17    5.25      7        F       15.61   FH
      ST-425            8      306     4                           0.00     17    5.25               F       20.81   FH
      ST-506            4      153     2     128       128         0.00     17    5.25      0        F        5.20   FH
      ST-706            2      306     1     128                   0.00     17    5.25               F        5.20   FH
    Other
      ST-112            0        0                                 0.00                                       0.00
      ST41201J         17     2101          N/A       N/A         12.00     69    5.25               F     1232.24  SMD-E Interface
      ST41201K         17     2101          N/A       N/A         12.00     69    5.25               F     1232.24  IPI-2 Interface
      ST6165J          10      823          N/A       N/A         30.00     39    8.5                F      160.49  SMD Interface
      ST6315J          19      823          N/A       N/A         20.00     38    8.5                F      297.10  SMD-E Interface
      ST6344J          24      711          N/A       N/A         18.00     39    8.5                F      332.75  SMD-E Interface
      ST6516J          24      711          N/A       N/A         18.00     54    8.5                F      460.73  SMD-E Interface
      ST683J            5      823          N/A       N/A         30.00     36    8.5                F       74.07  SMD Interface
      ST81123J         15     1635          N/A       N/A         15.00     80    8.5                F      981.00  SMD-E Interface
      ST81154KT        14     1635          N/A       N/A         15.00     87    8.5                F      995.72  SMD-E Interface


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      ST81236J         15     1635          N/A       N/A         15.00     90    8.5                F     1103.63  SMD-E Interface
      ST81236K         15     1635          N/A       N/A         15.00     90    8.5                F     1103.63  IPI-2 Interface
      ST82272J         19     2611          N/A       N/A         13.00     80    8.5                F     1984.36  SMD-E Interface
      ST82368K8        16     2611          N/A       N/A         13.00     90    8.5                F     1879.92  IPI-2 Interface
      ST82368K9        18     2611          N/A       N/A         13.00     90    8.5                F     2114.91  IPI-2 Interface
      ST82500J         19     2611          N/A       N/A         13.00     90    8.5                F     2232.41  SMD-E Interface
      ST82500K         19     2611          N/A       N/A         13.00     90    8.5                F     2232.41  IPI-2 Interface
      ST8368J          10     1217          N/A       N/A         18.00     56    8.5                F      340.76  SMD-E Interface
      ST8500J          10     1217          N/A       N/A         18.00     80    8.5                F      486.80  SMD-E Interface
      ST8741J          15     1635          N/A       N/A         15.00     54    8.5                F      662.17  SMD-E Interface
      ST8851J          15     1381          N/A       N/A         15.00     80    8.5                F      828.60  SMD-E Interface
    RLL
      ST-1150R          9     1072     5    N/A       N/A         15.00     26                              125.42
      ST-138R           4      615     2    none      none        40.00     26    3.5       7        H       31.98  RLL
      ST-138R-1         4      615     2    none      none        28.00     26    3.5       7        H       31.98  RLL  Old designa
      ST-157R           6      615     3    none      none        40.00     26    3.5       7        H       47.97  RLL
      ST-225R           2      667     1    none      none        70.00     26    5.25      7        H       17.34  RLL/ARLL
      ST-238R           4      615     2     300      none        65.00     26    5.25      7        H       31.98   HH
      ST-250R           4      667     2    none      none        70.00     26    5.25      7        H       34.68  RLL/ARLL
      ST-251R           6      820     3    none      none        40.00     26    5.25      7        H       63.96  RLL
      ST-277R           6      820     3    none      none        40.00     26    5.25      7        H       63.96  RLL
      ST-277R-1         6      820     3    none      none        28.00     26    5.25      7        H       63.96  RLL  3.5"
      ST-278R           6      820     3                          48.30     26    5.25               H       63.96
      ST-279R           5      989     3     128      N/A         28.00     26                       H       64.28
      ST-4077R          5     1024     3    none      none        28.00     26    5.25      7        F       66.56  RLL
      ST-4135R          9      960     5    N/A       N/A         28.00     26                       F      112.32
      ST-4144R          9     1024     5    none      none        28.00     26    5.25      7        F      119.81
    SCSI
      ST-1057N          3     1024     2                          28.30     26    3.5                H       39.94
      ST-1090N          5     1072     4    N/A       N/A         15.00     29             N/A               77.72  SWIFT 94351-90
      ST-1096N          7      906     4    none      none        24.00     26    3.5       7        F       82.45  SCSI
      ST-1102N          5              3                          28.30           3.5                H       84.00
      ST-1111N          5     1072     3    N/A       N/A         15.00     36                               96.48
      ST-1126N          7     1068     4    N/A       N/A         15.00     29                              108.40
      ST-1133NS         5     1268     3    N/A       N/A         15.00     36                              114.12
      ST-1144N          7              4                          28.30           3.5                H      125.00
      ST-1156N          7     1068     4    N/A       N/A         15.00     36                              134.57
      ST-1156NS         7     1068     4    N/A       N/A         15.00     36                              134.57
      ST-1162N          9     1068     5    N/A       N/A         15.00     29                              139.37
      ST-1186NS         7     1268     4    N/A       N/A         15.00     36                              159.77
      ST-1201N          9     1068     5    N/A       N/A         15.00     36                              173.02
      ST-1201NS         9     1068     5    N/A       N/A         15.00     36                              173.02
      ST-1239NS         9     1268     5    N/A       N/A         15.00     36                              205.42
      ST-125N           4      407     2    none      none        40.00     35    3.5       7        H       28.49  SCSI
      ST-125N-1         4      407     2    none      none        28.00     35    3.5       7        H       28.49  SCSI
      ST-138N           4      613     2    none      none        40.00     35    3.5       7        H       42.91  SCSI  Old design
      ST-138N-1         4      613     2    none      none        28.00     35    3.5       7        H       42.91  SCSI
      ST-157N           6      613     3    none      none        40.00     26    3.5       7        H       47.81  SCSI  Old design
      ST-157N-1         6      613     3    none      none        28.00     26    3.5       7        H       47.81  SCSI
      ST-177N           5      921     3    none      none        24.00     26    3.5       7        H       59.87  SCSI  Old design
      ST-2106N          5     1022     3    N/A       N/A         18.00     34                               86.87
      ST-2125N          3     1544     2    N/A       N/A         18.00     45                              104.22
      ST-225N           4      615     2     300      none        65.00     17    5.25      7        H       20.91  SCSI
      ST-2383N          7     1261     4    N/A       N/A         16.00     75                       H      331.01
      ST-2502N          7     1755     4    N/A       N/A         16.00     69                              423.83
      ST-250N           4      588     2                          80.00           5.25               H       42.90
      ST-251N           4      818     2    none      none        40.00     26    5.25      7        H       42.54  SCSI
      ST-251N-1         4      818     2    none      none        28.00     26    5.25      7        H       42.54  SCSI
      ST-277N           6      820     3    none      none        40.00     26    5.25      7        H       63.96  SCSI
      ST-277N-1         6      628     3    none      none        28.00     26    5.25      7        H       48.98  SCSI


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      ST-296N           6      818     3                          28.00     34    5.25               H       83.44   HH
      ST-3057N          6     1024     3                          28.30           3.5                T       49.10
      ST-3096N          3              2                          28.30           3.5                T       84.00
      ST-4051N          5      977     3               n/a         0.00                              F        0.00
      ST-4077N          5     1024     3    none      none        28.00     34    5.25      7        F       87.04  SCSI
      ST-4096N          8     1147     4    none      none        28.00     26    5.25      7        F      119.29  SCSI
      ST-4144N          9     1024     5    none      none        28.00           5.25      7        F        0.00  SCSI
      ST-4182N          9      969     5    N/A       N/A         16.50     34                              148.26
      ST-4192N          8     1147     4                          17.00     36    5.25      7        F      165.17  SCSI
      ST-4350N          9     1412     5    N/A       N/A         16.50     47                       F      298.64
      ST-4376N          9     1546     5    N/A       N/A         16.50     47                       F      326.98
      ST-4385N         15      791     8    N/A       N/A         10.70     54                       F      320.36
      ST-4702N         15     1546     8    N/A       N/A         16.50     51                       F      591.35
      ST-4766N         15     1632     8    N/A       N/A         15.50     54                       F      660.96
      ST-4767N         15     1356     8    N/A       N/A         11.90     65                       F      661.05
      ST41200N         15     1931     8    N/A       N/A         15.00     71    5.25               F     1028.26
      ST41520N         17     2101          N/A       N/A         12.00     67    5.25               F     1196.52
      ST81236N         15     1635          N/A       N/A         15.00     90    8.5                F     1103.63
      ST82500N         19     2611          N/A       N/A         13.00     90    8.5                F     2232.41
      ST8368N          10     1217          N/A       N/A         18.00     56    8.5                F      340.76
      ST8500N          10     1217          N/A       N/A         18.00     80    8.5                F      486.80
      ST8741N          15     1635          N/A       N/A         15.00     54    8.5                F      662.17
      ST8851N          15     1381          N/A       N/A         15.00     80    8.5                F      828.60
  SEAGATE SWIFT
    ESDI
      94316-111         5     1072     3    none      none        23.30           3.5                H       98.00
      94316-155         7     1072     4                          23.30           3.5                H      138.00
      94316-200         9     1072     5                          23.30           3.5                H      177.00
    MFM
      94355-100         9     1072     5                          23.30     17    3.5                H       82.01
      94355-150         9     1072     5                          23.30     17    3.5                H       82.01
    RLL
      94314-136         5              3                          23.30     26    3.5                T      120.00
      94354-111         5     1072     3                          23.30     26    3.5                H       69.68
      94354-126         7     1072     4                          23.30     26    3.5                H       97.55
      94354-133         5     1272     3                          23.30     26    3.5                H       82.68
      94354-155         7     1072     4                          23.30     26    3.5                H       97.55
      94354-160         9     1072     5                          23.30     26    3.5                H      125.42
      94354-186         7     1272     4                          23.30     26    3.5                H      115.75
      94354-200         9     1072     5                          23.30     26    3.5                H      125.42
      94354-230         9     1272     5                          23.30     26    3.5                H      148.82
    SCSI
      94311-136 SL      5              3                          23.30           3.5                T      120.00
      94311-136S        5              3                          23.30           3.5                T      120.00
      94351-111         5     1068     3                          23.30           3.5                H       98.00
      94351-126         7     1068     4                          23.30           3.5                H      111.00
      94351-133S        5     1268     3                          23.30           3.5                H      116.00
      94351-155         7     1068     4                          23.30           3.5                H      138.00
      94351-155S        7     1068     4                          23.30           3.5                H      138.00
      94351-160         9     1068     5                          23.30           3.5                H      142.00
      94351-186S        7     1268     4                          23.30           3.5                H      163.00
      94351-200         9     1068     5                          23.30           3.5                H      177.00
      94351-200S        9     1068     5                          23.30           3.5                H      177.00
      94351-230S        9     1268     5                          23.30           3.5                H      211.00
  SEAGATE SWIFT SL
    ESDI
      SL 94316-136      5              3    none      none        23.30           3.5                T      120.00  Third height
  SEAGATE WREN II
    MFM
      94155-85 FH       8     1024     5                          36.30     17    5.25               F       69.63


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      94155-86 FH       8      925     5                          36.30     17    5.25               F       62.90
      94155-96 FH       8     1024     5                          36.30     17    5.25               F       69.63
      94205-50 HH       5      989     3                          36.60     17    5.25               H       42.03
    RLL
      94155-135 FH      9      960     5                          36.30     26    5.25               F      112.32
      94204-74 HH       5              3                          36.30     26    5.25               H       65.00
      94204-81 HH       5              3                          36.30     26    5.25               H       71.00
      94205-70 HH       5      989     3                          36.30     26    5.25               H       64.28
  SEAGATE WREN III
    ESDI
      9416X FH          9      969     5                          24.80           5.25               F      160.00
    SCSI
      94211 HH          5              3                          26.30           5.25               H       91.00
  SEAGATE WREN IV
    ESDI
      94246-180 HH      4     1453     3                          23.30           5.25               H      160.00
  SEAGATE WREN V
    ESDI
      94186 FH         15     1280     8                          24.30     39    5.25               F      374.40
      94186 FH         13     1412     7                          26.30           5.25               F      328.00
      94186H FH        15     1224     8                          22.80           5.25               F      329.00
    SCSI
      94211-125 HH      3     1068     2                          23.30           5.25               H      110.00
  SEAGATE WREN VI
    RLL
      94244-219 HH      4     1747     3                          24.30     26    5.25               H       90.84
      94244-383 HH      7     1747     4                          24.30     26    5.25               H      158.98
  SEGATE WREN III
    SCSI
      9416X FH          9              5                          24.80           5.25               F      160.00
  SEGATE WREN RUNR
    SCSI
      94181-385H       15              8                          19.00           5.25               F      337.00
  SEGATE WREN V
    SCSI
      94171-350 FH      9              5                          24.80           5.25               F      307.00
      94171-376 FH      9              5                          25.80           5.25               F      330.00
      94221-209 HH      5              3                          26.30           5.25               H      183.00
  SEGATE WREN VI
    SCSI
      94241-383         7              4                          24.30           5.25               H      338.00
      94241-502         7              4                          24.30           5.25               H      440.00
  SHUGART
    MFM
      SA 604            4      159     2     128       128         0.00     17              0                 5.41
      SA 606            6      159     3     128       128         0.00     17              0                 8.11
      SA 607            2      306     1     128                   0.00     17                                5.20
      SA 612            4      311     2     128      none         0.00     17              0                10.57
      SA 706            2      306     1     128                   0.00     17                                5.20
      SA 712            4      306     2     128                   0.00     17                               10.40
    Other
      SA 724            0        0                                 0.00     17                                0.00
  SIEMENS
    ESDI
      1200              8     1216     4                          25.00           5.25               F        0.00   FH
      1300             12     1216     6                          25.00           5.25               F        0.00   FH
      2200              8     1216     4                          25.00           5.25               F        0.00   FH
      2300             12     1216     6                          25.00           5.25               F        0.00   FH
      5710             15        0     8                          16.00                                       0.00



  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
    SCSI
      5720             15        0     8                          16.00                                       0.00
  SONY
    Other
      NWP-539                                                                     N/A                       650.00  Eraseble Laser (
  SYQUEST
    MFM
      SQ 306R           2      306     1                           0.00     17                       H        5.20  Removable cartri
      SQ 306RD          4      306     2    none      none         0.00     17              7        H       10.40  Removable cartri
      SQ 312            2      615     1                           0.00     17                               10.46
      SQ 312RD          2      615     1    none      none         0.00     17              7                10.46  Removeable
      SQ 315F           4      612     2    none      none         0.00     17              7                20.81
      SQ 319            2      612     1                           0.00     17                               10.40
      SQ 325            4      612     2                           0.00     17                               20.81
      SQ 325F           4      615     2    none      none         0.00     17              7                20.91
      SQ 338F           6      615     3    none      none         0.00     17              7                31.36
      SQ 340AF          6      640     3                                    17                               32.64
  T.I.
    MFM
      TI5               4      153     2      64        64         0.00     17    5.25               F        5.20   FH
  TANDON
    MFM
      TM 251            2      306     1                           0.00     17                       F        5.20
      TM 252            4      306     2    none      none         0.00     17              7        H       10.40
      TM 261            2      612     1                           0.00     17                               10.40
      TM 262            4      615     2    none      none        80.00     17              7        H       20.91
      TM 3085           8     1024     4                          37.00     17                               69.63
      TM 353            4      306     2                                    17                               10.40
      TM 361            2      612     1                           0.00     17                               10.40
      TM 362            4      615     2    none      none        80.00     17              7        H       20.91
      TM 501            2      306     1     153       128         0.00     17              0        F        5.20
      TM 502            4      306     2     153       128         0.00     17              0        F       10.40
      TM 503            6      306     3     153       128         0.00     17              0                15.61
      TM 6025           4      153     2    none       128         0.00     17              0        F        5.20
      TM 602S           4      153     2    none       128         0.00     17              0        F        5.20
      TM 6035           6      153     3    none       128         0.00     17              0        F        7.80
      TM 6035E          6      230     3     128       128         0.00     17              0        F       11.73
      TM 603S           6      153     3    none       128         0.00     17              0        F        7.80
      TM 603SE          6      230     3     128       128         0.00     17              0        F       11.73
      TM 703            5      733     3    none      none         0.00     17              7        F       31.15
      TM 705            5      962     3    none                   0.00     17                               40.88
      TM 755            5      981     3    none      none        37.00     17    3.5       7        H       41.69
    RLL
      PD PAC 30         4      615     2                          40.00     26    5.25               H       31.98  Personal Data Pa
      TM 244            4      782     2                          37.00     26                               40.66
      TM 246            6      782     3                          37.00     26                               61.00
      TM 262R           2      782     1                                    26    3.5                        20.33   186364-408
      TM 264            4      782     2                          85.00     26    3.5                        40.66
      TM 3085           8     1024     4                          37.00     26                              106.50
      TM 344            4      782     2                          37.00     26    3.5                        40.66
      TM 346            6      782     3                          37.00     26    3.5                        61.00
      TM 362R           2      782     1                          85.00     26    3.5                        20.33
      TM 364            4      782     2                          85.00     26    3.5                        40.66   186364-102
      TM 702            4      615     2    none      none         0.00     26              7                31.98
      TM 702AT          4      615     2    none                   0.00     26                               31.98
      TM 703AT          5      733     3    none                   0.00     26                               47.65
    SCSI
      TM 2085           9     1004     5                          25.00                                       0.00
      TM 2128           9     1004     5                          25.00                                       0.00
      TM 2170           9     1344     5                          25.00                                       0.00


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      TM 270            8     1024                                                                            0.00
  TEAC
    MFM
      SD-150            4      306     2                           0.00     17                               10.40
      SD-510            4      306     2     128       128         0.00     17              7                10.40
      SD-520            4      615     2     128       128         0.00     17              7                20.91
    Other
      SD-540            0        0                                 0.00                              H        0.00
    RLL
      SD-340            2     1050     1                          35.00     26    5.25               T       27.30
      SD-380            4     1050     2                          32.70     26    3.5                T       54.60
    SCSI
      SD-340            2     1050     1                          35.70           3.5                T       43.00
      SD-380            4     1050     2                          32.70           3.5                T       86.00
  TOKICO
    MFM
      DK-503-2          4      306     2                           0.00     17                               10.40
  TOSHIBA
    ESDI
      MK-153FA          5      831     3                          23.00     35    5.25               F       72.71   FH
      MK-154FA          7      831     4                          23.00     35    5.25               F      101.80   FH
      MK-156FA         10      830     5                          31.30           5.25               F      152.10
      MK-250F          10     1224     5                          18.00     35    5.25               F      214.20   FH EDSI/SCSI
    MFM
      MK-134FA          7      733     4                          25.00     17    3.5                H       43.61
      MK-53F            5      830     3     512                  30.00     17    5.25               F       35.27   FH
      MK-53FA           5      830     3     512      none        30.00     17    5.25      7        F       35.27   FH
      MK-54F            7      830     4     512                  30.00     17    5.25               F       49.38   FH
      MK-54FA           7      830     4     512      none        30.00     17    5.25      7        F       49.38   FH
      MK-56F           10      830     5     512                  30.00     17    5.25               F       70.55   FH
      MK-56FA          10      830     5     512      none        30.00     17    5.25      7        F       70.55   FH
    RLL
      MK-53F-R          5      830     3                                    26                               53.95
      MK-53FB           5      830     3     512      none        23.00     26    5.25      7        F       53.95   FH
      MK-54F-R          7      830     4                                    26                               75.53
      MK-54FB           7      830     4     512      none        25.00     26    5.25      7        F       75.53   FH
      MK-56F-R         10      830     5                                    26                              107.90
      MK-56FB          10      830     5     512      none        25.00     26    5.25      7        F      107.90   FH
    SCSI
      MK-153FB          5      830     3                          23.00     35    5.25               F       72.63   FH
      MK-154FB          7      830     4                          23.00     35    5.25               F      101.67   FH
      MK-156FA         10      830     5                          23.00     35    5.25               F      145.25   FH
      MK-156FB         10      831     5                          23.00     35    5.25               F      145.43   FH
      MK-232FB          3      845     2                          33.30           3.5                H       45.40
      MK-233FB          5      845     4                          33.30           3.5                H       75.70
      MK-234FB          7      845     4                          33.30           3.5                H      106.00
  TULIN
    MFM
      TL 213            2      612     1                           0.00     17                       H       10.40
      TL 226            4      640     2    none      none         0.00     17              7        H       21.76
      TL 238            4      640     2    none                   0.00     17                               21.76
      TL 240            6      640     3    none      none         0.00     17              7        H       32.64
      TL 258            6      640     3    none                   0.00     17                               32.64
      TL 326            4      640     2    none      none         0.00     17              7        H       21.76
      TL 340            6      640     3    none      none         0.00     17              7        H       32.64
  VERTEX
    MFM
      V130              3      987     2                                    17                               25.17
      V150              5      987     3                                    17                               41.95
      V170              7      987     4                                    17                               58.73


  Manufacturer
    Controler Type                         Write     Reduced    Access    Sec/   Phys.    Step      Full  Formattd
       Model         Heads  Cylndrs  Plat  Pre_Comp  Write      in ms.    Track  Size      Rate     Half  Capacity  Remarks
  =================  =====  =======  ====  ========  ========  =========  =====  =======  ========  ====  ========  ================
      V185              7     1166     4                                    17                               69.38
  VERTEX/PRIAM
    MFM
      V130              3      987                    400                   17                               25.17
      V150              5      987                    400                   17                               41.95
      V170              7      987                    400                   17                               58.73
      V185              7     1166                    400                   17                               69.38
  WESTERN DIGITAL
    MFM
      WD 262            4      615     2                          80.00     17    3.5                H       20.91   to 5.25 HH
      WD 362            4      615     2                          80.00     17    3.5                        20.91
    RLL
      WD 344R           4      782     2                          40.00     26    3.5                        40.66
      WD 382R TM26      2      782     1                          85.00     26    3.5                        20.33
      WD 383R           4      615     2                          85.00     26    3.5                H       31.98   HH
      WD 384R TM36      4      782     2                          85.00     26    3.5                        40.66
      WD 544R           4      782     2                          40.00     26    3.5                H       40.66   5.25 HH  BRKT
      WD 582R           2      782     1                          85.00     26    3.5                H       20.33   to 5.25 HH  BRK
      WD 583R           4      615     2                          85.00     26    3.5                H       31.98   HH  BRKT
      WD 584R           4      782     2                          85.00     26    3.5                H       40.66   5.25 HH  BRKT
      WD93024-A         2      782     1                          37.00     26    3.5                H       20.33
      WD93028-A         2      782     1                          69.00     26    3.5                        20.33
      WD93028-X         2      782     1                          70.00     26    3.5                        20.33
      WD93038-X         3      782     2                          70.00     26    3.5                        30.50
      WD93044-A         4      782     2                          37.00     26    3.5                H       40.66
      WD93048-A         4      782     2                          69.00     26    5.3                        40.66
      WD93048-X         4      782     2                          70.00     26    3.5                        40.66
      WD95028-A         2      782     1                          69.00     26    5.25               H       20.33   HH
      WD95028-X         2      782     1                          69.00     26    5.25               H       20.33   HH
      WD95038-X         3      782     2                          80.00     26    5.25               H       30.50   HH
      WD95048-A         4      782     2                          80.00     26    5.25               H       40.66   HH
      WD95048-X         4      782     2                          80.00     26    5.25               H       40.66   HH
  WESTERN DYNEX
    MFM
      WD 505            2      310     1    none      none         0.00     17              7        F        5.27
  XEBEC
    MFM
      OWL I             4        0     2                          55.00     17    5.25               H        0.00   HH
      OWL II            4        0     2                          40.00     17    5.25               H        0.00   HH
      OWL III           4        0     2                          38.00     17    5.25               H        0.00   HH




















