Just downloaded this game and it is and it isn't the original music. I still have the original game CD from way back. I kept it because you can play the original game cd in any cd player and enjoy the music, as I still listen and have the original Ys for the same reason. For the most part the music is the same but there are changes throughtout that are different from the original game CD.

For the most part someone who's never played it before will still be blown by the rockin' soundtrack and not notice the differences, unless you still have the original, like me, to compare it to, I was a little disappointed at the changes. Maybe it's the way it had to be emulated. All in all, an awesome shooter.