I was playing Ghost last night and then turned on my xbox this morning and went to play the game. Was prompted to do an update for the game, which I did. After that, all of a sudden my disc is unreadable. After trying several troubleshooting solutions, I still have had no luck. I then had to do an xbox update for the system, which took forever to finish and my disc is still unreadable. It is only this one game however, as I have tested other games. What gives?