I think they call it... The music brick!
Question: Is this like an in-game media player? With full working track bar and pause/play buttons?
How about you also add a visualize, ohh and a in-game music store! Don't forget the CD-Burning ability.Why wast your time converting all your music, you could just open iTunes in the background.
I think a nice barebones application like this would be great. No "Visulizations" or any of that crap. It plays music, and it does it well, with several handy options.