Okay, I made a backup of The Blue Collar Comedy Tour, and lent it to a friend. (i didn't trust them with the original) The only dvd player they have is a dvd-rom on a laptop, and the laptop wouldn't play it. I tested the disk on my compie and my ps2, so i know it works for me. The question is, is it her laptop, or something else? thnx in advance, all.