[rebmastu]

If I'm not mistaken, that type of audio file has the "new" lossless audio compression that Sony uses (ATRAC3). It belongs to RealNetworks.
This might help: http://multimedia.cx/eggs/atrac3-decoder/

Awesome, that fixed my second problem. Unfortunately, that was only one file in a series of 25.

Can anyone give me a layman's definition of "WAVE_FORMAT_EXTENSIBLE" and how I can play it or at least convert it into something usable? That would rock socks. I tried doing a Google search on my own (hey, I don't expect to be spoon-fed!), but I wasn't able to wade past the technical jargon.