Problem with Nero 6

Hi,

I am using the Nero 6 demo and inserting a CD-RW into a Samsung CD-R/RW SW-408B Burner. After I finish adding my mp3’s on Nero and proceed to Burn, Nero indicates that the project was successful. However, when I remove my CD and attempt to play, there are no tracks. It is empty. Would anyone happen to know what the problem may be?

Frustrated and Confused