There was a period of about eighteen months where you could download all these song stems that had leaked out of a studio somewhere. I pulled down Def Leppard's "Pour Some Sugar on Me" just to see how much crud Butch Vig really did with the guitars. It was interesting; supposedly the guitars had been doubled like 100 times on that track but it turned out it was only a few.

Wish I could still get them. It was an interesting Pro tools experiment.