> You are right on Harold. I used to work as a projectionist > in theatres with the old-fashioned system which had 2 > projectors. We would have the projector with the next reel > ready to go and when we saw the first cuemark, we would start > the projector motor, then move the dowser open to let the > light shine on the now moving film. When the 2nd cuemark > appeared, approx. 8 seconds later, we would operate switches > to change picture & sound. Ah, cool. I must have gotten it mixed up with something else. Or been lied to, that happens a lot too. I should pay more attention next time. The blobs seem to show up a lot. How long is a typical reel? Do they still have multiple reels these days? Weird that they'd keep the blobs if not. Tony -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist