bought the robin addition downloaded catwoman add on and nightwing add on. started playing the game had a game update now everytime i go and play my game it says ive got a corupted file so i deleted all downloads to see if that works but no it is the game update that is corrupt so the only way i can play this game is off line!!! that sucks!!!! i now cant get my robin download as i deleted that tryed finding it on line but i cant find it anywhere?!!!