I'm trying to back up the extended version of Sin City. It's a 2 disc set. I was able to back up the 2nd disc after using DVD Fab Decrypter first without a problem. I tried the same procedure with disc 1 and I keep getting a message saying that the media that I'm using doesn't have enough space for the process. It says that I'd need a dual-layer blank disc. What's going on? The other disc had roughly as much data as the first and I was able to use a regular blank DVD. Has anyone else had this problem? Thanks in advance for any info towards solving this problem.