Matt,
I'll go back and look for the file type information I posted. Soon as I find it (or can't), I'll reply again on the board.
Now, when I pull up the settings page on Zune and look at the Audio Formats for ripping, the choices are: WMA Constant Bit, WMA Variable Bit, WMA Lossless, and MP3.
The files types that Zune software can play by default are: m3u, m4a, m4b, m4v, mp3, mp4, wma, wmv.
So, nowhere on the software can I find that it accepts the other types previously mentioned. If I find the source, I'll shoot it back at you.
Also, using a different set of encryption keys was a bad decision on their part; one reason why is because Zune currently suffers from expanded tagging (meta tagging) functions. Very limited. That's why I'm glad it at least uploads my MC 12 tags as is. So, basically, MC 12 helps keep my Zune organized. I love it.
Sorry if I caused any confusion about the file types. Just happy with my MC12 and Zune.
psm