Hello, I have a Mac system which is installed with Mac OS X Snow leopard on it. I have Sims 3 installed on the computer and I am really having fun while playing the game. Now I want to install the same game on my brothers computer and hence want to know How to play Sims 3 without CD on mac OS X? So if any of you knows how to go about it, then please share some information about the same. Thanks in advance.