oh, i was assuming you were using a separate sound device...
in that case audio sync COULD be an easy fix...
-does the audio actually sound too fast or too slow (does it sound reeeaaaalll slooooooow, or chipmunk fast?)
-or does it sound normal but after a bit the lips don't match the audio (sync drift)??
this is important you specify, as these are two different issues entirely
if its the latter you need to make sure:
1. you only capture 15-20 mins max at a time (edit
i admit i've captured MUCH more than this at once without issue, but it's the rule of thumb if you have issues)
2. you have your scratch set to a non-boot physical drive (critical!
3. that your scratch drive is NOT 70% or more full (drive performance DOES drop at a certain point as platters are filled)
4. there are also some firewire bus issues that are possible on a g5/powerbook if you're capturing from firewire and have a firewire scratch disk...
more details needed!
Also… lets use ‘sample rate’ for audio, ‘frame rate’ for video… hehe