Yes hello-been trying to install the fallout 3 dlc yet it's saying that the fallout 3/data/anchorage - main.bsa doesn't match the file in the setup's .cab file. It says the medium (disc) might be corrupted, I bought it from game, should I request a new copy from them? or have you dealt with this problem before.

Thanks in advance for your help.

It's very possible the disk is corrupted. I would exchange it if I could.