So I know that you can make a copy of media you buy (it's the sharing that's bad).
I own/ed Fallout 3 for 360 and decided that I was done with the game. Before I traded it in for credit at the local game store, I downloaded a pirated copy of the PC version. Does that count as a back-up copy, since I still have the receipt proving purchase of the game? Or is it theft because it is a different platform?