Mp3 or Data

[Unregistered]

Does anyone know the difference between burning a cd with either an mp3 or data option? For example, Nero and Music Match J Box have an option to burn either mp3 or data discs. I have burned mp3'z with both opts. And found NO difference. The file'z (mp3) still play on my portable cd/mp3 disc player, with no problems. Whats the advantage/disadvantage if any?

[Spoon]

There shouldn't be any, I suspect it is just there for those who look at the program and say 'How do I burn a mp3 CD?'