Hi there, welcome to the forums!
I'm guessing the file names are wrong. What I did was I renamed all the music files: "track01.mp3, track02.mp3..."
If I remember correctly, I had to change the track names in a way that "track00" from the cd was renamed "track01" and "track01" from the cd was renamed "track02" and so on. My files were mp3s but I think that should work.
- The Artist Currently Known As Jeo.