Thanks Ninja, I have heard a 2CD set before, probably the one you mention, and wasn't impressed enough to buy the same songs over again. I will check out the Black Box version though. I'd happily reinvest in this music if it sounds better. In fact, 1/2 my Sabbath music was on cassettes so I haven't listened to them in years and years.

With great power comes Awesome irresponsibility.