I have several videos that the audio doesn't work and usually it's because the audio in them is mp3 instead of ACC. Does Apple or another have a "codec pack" for an all-in-one audio resource solution? (something similar to K-Lite for Windows)
iMac
for audio I use "All2MP3" but unfortunately the sites that come up are all notorious for trying to bundle Mac adware.
You may want to give the app VLC a shot (http://www.videolan.org/vlc/).
It is pretty much a "Swiss Army Knife" of media players.
I'm using VLC and still having the audio problems with AVI files with MP3 audio. The MP4 with ACC works just fine, of course.
codec pack for iMac
