If you can find a set of movie film editing "rewinds", they work MUCH
better. The fancy ones have clutches, multiple gearings, and are very
smooth in their operation.
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Fred Cisin cisin(a)xenosoft.com
XenoSoft
http://www.xenosoft.com
2210 Sixth St. (510) 644-9366
Berkeley, CA 94710-2219