Hey guys, I need some help finding a program to suit my needs. I want a program that will compare one drive to another and tell me if files from the one drive are located anywhere on the second drive. I have a bunch of backed up files on another drive and I want to know if any of those are already on my main drive and I don't want to just copy everything over. I don't know what in the world to call that type of program so I thought someone could help. Thanks!