I can't remember if Parallels used an image file for CD/DVD-ROM drive when I first installed it. When I check the settings, it is using the actual CD/DVD-ROM drive. The problem with this is that I can't use the drive on both OSX or XP at the same time. It's either, or. I tried locating the img file for the CD/DVD-ROM (if there was one from the start) but can't seem to find it. Any advantages from using an img file for the CD/DVD-ROM drive? Thanks in advance.