23 feb 94    pre beta
		first limited release of Layer 3 Shareware for PCs
25 feb 94    ver 0.99 (beta)
		first release of beta version                
16 mar 94    ver 0.99a (beta)                
		bug fix: distortions in mono mode fixed.
25 apr 94    ver 0.99b (beta)
		changes to documentation
03 jun 94    ver 0.99c (beta)
		bug fix: switching from long blocks to short blocks fixed
		new decoder option: write 24 bit ascii hex output
13 jul 94    ver 1.00
		improved file handling for encoder
		       - true mono files
		       - .WAV files
		encoder now twice as fast
		new registration mechanism
		additional decoder option
		       - ign: ignore errors in bit stream (do not stop 
			      decoding process)
		       - ff: accept free format in bit stream
22 feb 95    ver 1.50
	     decoder version 2.00
		aiff support
		snd support
		more bitrates
		MPEG 2 Layer 3 low sampling frequencies
		support of ancillary data 
04 sep 95    ver 2.00
	     encoder version 2.00
		MPEG 2 Layer 3 low sampling frequencies
		support of ancillary data 
		downsampling support
	     decoder version 2.10
		bugfixes
24 apr 96    ver 2.50
	     encoder version 2.50
		8kbit/8kHz support
		enhanced speed
	     decoder version 2.30
		bugfixes
31 jul 96    ver 2.60
	     encoder version 2.60
		"MPEG2.5" support
		enhanced speed
	     decoder version 2.60
		"MPEG2.5" support
07 nov 96    ver 2.61
             bugfixes