Quote Originally Posted by kmclights
Files encoded DV-PAL and played fine in QT. All layers set to mode 10 (play fwd > 0) or 12 (play fwd once > 0). The movies played fine on their own, it was when you had multiple layers at the same time. It sounds as if more RAM won't help, but that sounds counter-intuitive. Surely if the computer is being asked to do more, having more RAM will help?

Here's the thing, adding more RAM will help the computer out, and it might improve your performance, but only VERY slightly, if at all. The computer really isnt being asked to do much in terms of what it can do, its the Hard Drive that is doing all of the work really. At what quality were these files encoded?