I have a Toshiba Gigabeat S30 (MES30V, same as MES60V) which operates as an MTP device. I can plug the MP3 player in, and it appears to be detected correctly by Windows as an MTP player; however it does not show up in Windows Media Player. I have downloaded Songbird, and it too detects the Gigabeat but Sonbird's MTP support is pretty weak.
Did Microsoft remove MTP support in Windows 7/Windows Media Player 12? Is there anyway to get this working?
I should add that with Vista, the Gigabeat would show up as a drive in My Computer, that does not appear to be the case with Windows 7.