Quote Originally Posted by ping141
Brand new system from Highend. Mac Pro 2.66 with SCSI drive etc....

QuickTime clips about a minute or two long, 1024 x 576, Photo JPEG 75% or 50%, with 48 khz audio.

And in the middle of several clips, the frame rate stutters. And we are talking one clip playing on one layer...

Why?
there is a lot of difference between photjpeg 75 and 50 and whenever you do anything that isnt standard def - the whole game changes. things are much more critical.

if you dont have any history with doing anything with digital video you will be in for a sharp learning experience- you will need to learn what works and what doesnt for whatever your system is.

most things do not work. you have to find something that works for what you need to do.
there are only a few things that do. its not the other way round.

what did you use photojpeg 75 or 50?

and are you trying to play audio at the same time?