Amergin -

It sounds as though she may have burned the CD as a "data" CD containing mp3 files instead of as a "music" CD. In this case, the DVD player, and most other "players" won't be able to read it. The burner drive can read and play the files as individual files, just as if they were on her hard drive.

There are some remaining incompatibilities between burners, players, and media that continue to cause problems, though; so it may be just an unfortunate combination of burner vs blank vs reader. A quick test for compatibility is to burn a "duplicate" of a known good (playable) CD. If you have a CD reader and separate CD burner, you should do a disk-to-disk for this. If you only have one drive, your software will determine whether you have to copy to hard drive and back, or may do it automagically.

I've found Nero best for audio CDs, although I don't do mp3. Nero is a r.p.i.a. for data CDs though, so I usually use Roxio EZCD for them.

John