Well...I don't know if you've solved the problem or are even still interested in trying to find out what to do (Well..I'm not even sure if I can solve the problem ^ ^; )

Anyway, I have the same problem however sometimes it works if you download a codec that reads(I don't know if thats the right word or not) certain file formats. Music from CDs are from in mp4 format, unless you have a codec/encoder(I can never remember which one it is) then it won't let you import it.

When I first got my computer we had a free trial of a mp4 codec I could use any song that I wanted to in WMM! But then it stopped allowing me to use them and I couldn't understand why, I'm still not entirely sure now. But the free trial had run out so thats the only thing I can boil it down to, if I can help anymore then I'll do some digging around and see what I find.

I'm not even sure if any of that made any sense, it did and didn't in my mind ^ ^;

To be honest it would be best to rip your songs from your CD into mp3 format. You can do this on window media player.