This issue is also there when using Windows Explorer to view the music files.  Its seems that some MP3′s and M4a’s (AAC) do not show any ID3 information.  I know this information is there as its works perfectly with Rhythmbox on Ubuntu, or even Songbird on Windows but its seems that Windows has an issue with some files.

It turns out the answer to this problem is rather unsurpirising, Windows 7 does not support nativley ID3 v2.4.  The solution is to either use a different media player such as Songbird or to convert your ID3 v2.4 to ID3 v2.3.

I don’t care much for Songbird, Media Monkey, iTunes or any other media player I have found available for Windows and hope one day either Banshee or Rhythmbox will be available for the Windows platform, so until then I have chosen to convert my ID3 tags.  There is a great application for completing this task called Kid3 which you can download from Sourceforge here kid3.sourceforge.net/#download