Fallout 3 DLC Disc 2 wont work?!? Please help.?

I just finished Fallout 3 today actually...and as a PC gamer was indescribably disappointed with the ending. But that is beside the point. I have found an answer though, I have the game of the year addition, and The DLC pack: Broken steel makes the fallout game un-ended. Though, to my sour luck, a problem arose downloading the Disc 2. I cant even download it. The disc vibrates in my disc drive, like a normal disc would, then just stops. Itdoesn'tt even bring anything up. I have found that many people face this alarming problem, butdon'tt know how to fix it. Please, as a gamer, I need help to get this DLC disc dowloaded. Thanks.