I bought the buy 2 preowned and get 1 free deal online at Game Stop. I bought black ops, halo reach, and madden nfl 11 and go madden free. They are all used and I just got them today. All of those games work except for halo reach, it won’t read the disk and kept saying reading, then open tray, then after cleaning and restarting the console, it says unable to read the disk error thing, can I bring my receipt, and the box with the game in to gamestop without bringing blackops and madden and still get it replaced? It was guarenteed to work.Thanks, 5 stars for effort!!