Just an idea... Which i couldn't get to work cos of one problem..
Is it possible to convert mp3 or similair to .mus files?
I was using burnout for a sample, the music is in .mus format. Would it be possible to put in your own .mus music files and replace the ones in the game? If EA can make .mus files from real songs.. why can't anyone else?
All you would have to do is then recompile the iso with all your own songs in and play any game while enjoying your own selection of music.