Nero: Bufferunderrun error at 3% and then quits

Just recently i bought a cd/mp3 player for my car! so im making a mp3 cd on nero 5, ive selected data cd and i put all the music i want on it and i go to burn it and it goes to about 3% and says underread buffer or something along those lines then it just does nothing and quits what is the problem if anyone could help me that would be great thanks!

i think underread buffer = Buffer Underrun
try a slower burning speed.