I did run it on a mac but decided a while back to split my mac drive using boot camp. What Albert describes is correct. It is a windows only program so you need to find a way to run windows on mac and parallels is one way. Basically you create a virtual machine on your mac that you install windows, then inside windows you install collector's assistant.

If Terry says they are close to a native Mac program that might be your best bet. Spend the time getting all the scans together and you'll be ready for it.