Hi,
.wmv files do not play (the player goes back to the intro screen with the 4 big buttons when you click on it) but the same file does work when i rename it to .mp3. then it also gets a audio-icon instead of a questionmark.
oh, and a filename on the play-screen would be usefull

wmv's dont show a samplerate / bitrate either, but the playtime works just fine.
Remco