First of all, your post audio guy should have already figured out setting that work for him. It drives me crazy when they don’t have a clue.
Most post audio guys I work with now just use DV files. But I would suggest using Sorenson 3.
So copy the text below and paste it into a new text document. Save it and then change the extention from .txt to .setting.
Then move the setting into the home/library/application support/compressor folder. Open up compressor and the setting should be there.
There are two setting you can try. Once you’re in compressor you might have to modify the setting for your picture aspect ratio.
Sorenson 3 640×360
No%2520descriptionmovyes-1001 1 1 0 Y 0 100 0 0SVQ3SMI 0000no
Sorenson 3 320×180
No%2520descriptionmovyes-1001 1 1 0 Y 0 100 0 0SVQ3SMI 819200000no
-Good Luck