So after hours of searching, I FINALLY located my copy of F.E.A.R. I went to install it, got to the 5th and final disc, only to find out a file on said disc is corrupted, and installation fails. I have the key that came with the game when I purchased it. Is there any way I can download the game somewhere online and use my legitimate key, or am I out of luck and need to purchase another copy of the game?