As far as I know, it will boot on a mac. For the homebuilt computer, it will get to the part where it asks me how to boot. If I choose either boot, or verify then boot, it will show a small symbol in the center, that normally fills up, but it doesn't. There is no CD activity at all at this point. For a windows computer, I'm not sure how to boot from a CD. Hitting F12 and selecting to boot from a CD doesn't seem to work.