What is the Best Audio Format for distribution?
With audio, you don’t really have as much as a choice as you do with the video format. This is because certain audio codecs are usually strongly tied or associated with a particular video format. For example, Windows Media Video files will also use Windows Media Audio. If you make an Xvid encode in an AVI container, you will almost certainly want to use MP3 audio. With h.264 video, the AAC audio codec is usually expected.