> >Not so long ago I scored a movie on Logic 5.5 pc > with AVI video as a tiny window in the top corner. As long as the movie > clip was not bigger than say 100 MB everything was fine. > > > >Now I'm on 7.1 on Imac G5 20" with 1,5 Gig inside > scoring even a tinyclip like a tv ad bumper is virtually impossible > with a QT video windowopen. > > It also makes a big difference what codec the video is compressed with. Sorenson, for example, takes a lot of your CPU to run. Try expoerting it from QT Player as DV. Even though it's much bigger, it will play back with less strain. Dave