cod5 ERROR!?!?!?!?!?

i recieved my very own cod5waw game for my ps3 on christmas, it worked fine untile the date of a week and a friday after. i have no idea y this is happening after the home screen comes up, it goes tho the starting trailer and then freezes, my first thought was the disc, so i returned it and then gota new one, supprizinglyyyy................ it didnt worlk? i deleted my info for the game and didnt every thing i could think of and it just wont work? pleas any solutions, i neeeeeed help. p.s evry other game works, like farcry @ fallout3 and rock band, just not cod5?????

i recieved my very own cod5waw game for my ps3 on christmas, it worked fine untile the date of a week and a friday after. i have no idea y this is happening after the home screen comes up, it goes tho the starting trailer and then freezes, my first thought was the disc, so i returned it and then gota new one, supprizinglyyyy................ it didnt worlk? i deleted my info for the game and didnt every thing i could think of and it just wont work? pleas any solutions, i neeeeeed help. p.s evry other game works, like farcry @ fallout3 and rock band, just not cod5?????

cheeSe_PeaNuT17