Hello, I recently got AC3. I purchased the game, put in both discs and they did not work. They had no scratches or thumb prints. I took it back and got a new copy. Same problem. I got NBA 2K13 2 days earlier and it had no problems. I called Xbox and they said I need to send it in, but why? It reads every other game except AC3. Any suggestions? Its an arcade version btw.