I backed up all my music onto a DVD a while back incase of user stupidity, which happened last night when I deleted all of it..oops.

Anyways, when I use WMP to "Add to Library by searching folders" it doesn't add all of it, seemingly randomly it misses out whole albums or some songs from some albums, and yet the files aren't corrupt, they play fine if I open them from windows explorer, it's just frustrating that they don't add to a media library, tried WMP, Winamp and foobar2000 all with the same result so far

Any ideas/suggestions?

Cheers,
David