If anyone is interested:
http://www.makeuseof.com/tag/audio-file-format-right-needs/ (http://www.makeuseof.com/tag/audio-file-format-right-needs/)
Wow. Great read, thanks!
Seems slanted toward stand-alone audio, rather than audio for video. No mention of elementary/program stream formats like .m4a, .mpa, .mp2 (MPEG-1 Audio Layer II) or AC-3 in the coverage.
Dan.