c:sv -s13 work:demos/blackboxvideo/BLACKBOX
c:sv -s15 work:demos/blackboxvideo/BOXDANCE
c:runback c:sound work:demos/blackboxvideo/boxsnd l quiet
c:sv -s15 work:demos/blackboxvideo/BOXHILL
c:sv -s15 work:demos/blackboxvideo/aniface
