If its a genuine cd with paperwork that is not piracy as for apple why should they tell you what you can run your software you have paid for on .Its like microsoft with the xbox its a stripped out pc and can run linux but if the users all done it microsoft would lose loads of money due to hardware being sold for less than it cost to make ,they make the money back on the software so they lose out.If i have paid for something and own it i would do whatever i want with it .if it is a copy of the disc that is piracy. :-o