I'm not sure if anyone else has experienced problems using software that has copy protection on the CD or not. We use some Windows software in XP called BoardMaker that requires the CD be in the drive or the program won't start up. The CD has some form of copy protection on it to prevent the disc from being copied. Apparently the way Parallels handles access to the CD drive doesn't allow BoardMaker to "see" whatever it needs to for the program to launch. I've tested the software using VMWare Fusion and it will run properly in that virtualized environment. I was just hoping that someone at Parallels would look into the issue and possibly fix it. I was forced to switch to using VMWare Fusion for this reason. The computers are MacBook Core Duo 2.0 GHz with 2.0 GB of RAM running Mac OS 10.4.11 with all applied updates and Parallels Desktop 2.5 build 3214.