Best bet is to not use avi, use mp4 instead.
Other workarounds involve uncompressing the audio side of the avi so you have xvid+wav audio.

or creating Xvid+wav audio direct from vob files.

ok. I do use mp4's but, i just have some older avi vids that i was hoping i didn't have to convert to mp4's....btw...anyone have any good avi to mp4 converters they recommend?...for mac.

ffmpeg.

I haven't tried it but you could probably do

ffmpeg -i avifilename.avi -vcodec copy -acodec copy mp4filename.mp4

Which should give you an mp4 file without any loss of quality. Try it with one file, if it works put all your avi in the same directory then run.

for $i in *.avi; do ffmpeg -i "$i" -vcodec copy -acodec copy `basename "$i" .avi`.mp4

That will run through all the files and convert them.

...what?

Sorry dude, i'm not the best with computers.....i'll try and figure out what you said.

it's a "for" loop meant to be run from the command line. you would use the "Terminal" application on a Mac to do this with. It's in the utilities folder. You should check out Mac OSX commands for dummies (no offense, I'm being serious). there are a lot of cool things you can do from the command line that you don't have available in the GUI on a Mac. It's actually a VERY full featured command line environment on Macs, unlike that crappy pacific nw os.

You could try using ffmpegX www.ffmpegx.com set the video and audio to "passthrough" see what it does.

thanks guys....i'll let you know how it goes.