Anyone who might have the Castle release of this CD from the 90's need not rush out and buy this version. I was very excited when I heard about this release and held high hopes, but upon receiving this CD I am disappointed. I'll begin with the bonus disc, which is a live show from 1986. This sounds like a crappy bootleg, and does not meet the release standard that previous deluxe editions have set (for alternate example see Def Leppard's Pyromania release which is stellar). The sound is muddy and when listening through a headset actually pans from left to right during the show, which is very annoying. I think the performance is strong, and the set list is very interesting but from a sound point of view, it's very poor. I would have liked a DVD from one of the shows, or demos. As for the remastered disc itself, I really don't see much difference between this and other releases of the same CD. I find my Castle release just as clear sounding, and in fact is much lounder than this release. I do love this album and it ranks as one of my favs by Sabbath. I feel if you already own a good version of this disc, there is no reason to rush out and buy it. If you don't own the disc and would like to get it, I would begin by trying to find the Castle version from the 90's. If that fails, then buy this one, but don't have high expectations for the bonus disc, it's just not that good. I hope this review is helpful for most of you. Now, all I need to have is a deluxe edition of Born Again and The Headless Cross.