Speaking of demo discs, back in the day I had a demo disc for Rogue Galaxy. The disc looked like a legit copy of the game, except the disc said something like "Demo disc, not for resale". I put it in a clear cd case, with a strategically placed sticker that covered up the "Demo disc" print. Went to Gamestop with a buddy to trade in a bunch of games, and I included the demo disc in the pile to see if we could pull one over on the employee, and sure enough, the employee didn't even open the case to inspect the disc. He just saw it was a Rogue Galaxy disc through the cd case, typed it in the computer, and set it in the "Yes" pile. The friend and I glanced at each other like holy shit, he's actually going to take it! If memory serves, he gave me 40 dollars store credit for the demo disc, as it was a new release at the time.