Go out and get a disc resurfacer. They work... it'll grind a small layer of the disc off.
http://www.heartlandamerica.com/browse/item.asp?PIN=41188&SC=WIG20001&DL=GAW1&gclid=CPz7otiFrYYCFQsQFQod8mqBVg
I'd send you my copy of the game (I'm not a fan of it BTW) but it'd probably be pretty $$ for me to do that from Canada.
Prepare for termination! It is the only logical thing to do, for I am only loyal to Megatron.