Still, they don't care if its music gets ripped and spread around for collectors and hobbyists but if you're making a profit ($$$), that's illegal and a lawsuit will appear. ROMs are still a different story because there are devices/emulators that will keep people from getting a physical copy of the game and pay.
just a heads up, looked at the ps3 & wii versions & it appears to be using an updated revision of the smp format, so thought i'd mention it although have no idea how to convert them.
parts of the 360 archives are compressed but the music is not, the ps3 & wii archives are not compressed at all :)