I'm trying to backup my copy of Diablo 2. I have a Sony RW drive, using Verbatim CD-R's and CDRWin 3.7f. Everything seems to work fine, but when I try to play the game, I keep getting a message that tells me to "Please be sure the Play Disc is inserted, then click retry." Do I need a patch or something for this one? I've heard that it should work the way I did it, but for some reason it's not. Any help would be appreciated.