Perhaps I don't understand how the GTA soundtrack works. Isn't the soundtrack on the disc? So is the problem that bc games just use the physical disc as a passkey to download the game, but the download wouldn't have the original soundtrack because of licensing? But in that case you're okay if you play the game from disc on the original system? Or am I way off track?
That sounds right based on the educated guesses I've made about how BC works (the digital translation of the games rather than true emulation of the original code).