If you disc cracked contact the people who make the game, DeepSilver, Activision, etc. and tell them it cracked while inside the PS3/Xbox and they may help ou out, my brothers Xbox scratched his disc and I called Microsoft and they told me to call Activision and they told me it would cost $20 to get a new copy from them because I did not cause the damage, they may be able to help you or who ever wins the game.
sorry but i have tried cracked games before in the ps3.. they will not work! the ps3 will not read a cracked bluray disk at all. ps3 games are bluray. too bad though it would be nice.