My primary initial reason for wanting to run Windows on my MacBook Pro Core Duo is to run a language instruction CD set that's only available for Windows. This is a CD set of the type where there is an initial installation required from the first of several disks, then that enables playing of other CDs and there are prompts for disks upon selecting items from the main menu. In testing this I find that the CD runs and much, but not all of the content appears to behave satisfactorily. However the CD contains multimedia segments, and those in addition to the start-up animation, do not perform satisfactorily. The animations and movies are a bit erratic, but the bigger problem is the lagging and scratchy, intermittent audio. I think (but not completely sure) that all the multimedia content is in Quicktime for Windows format, because installation of Quicktime appears to have been part of the installation process. I don't know what app was used to author the set. I want to find out if there is any way to improve this performance, or if maybe the only way to get good performance from this type of material is to partition the drive and boot in Windows, rather than using the Parallels strategy.