Please do not get the wrong idea with this post. I was wondering today, I know OSX is not windows that you need to crack and have licence key, but whats oSX defence agains copying? Or they simply do not care? I heard that each Snow Leopard is locked for each computer, however 2 days ago I downloading Retail ISO from Bittorrent which I installed and it works like a charm, why is that? Why I did that is simple, my OSX Install DVD (Genuine) broke because my MBP drive scratched the hell out of it. I'm waiting for replacement, it has been 5 days and I still didnt get anything. Just bought a new HDD so I needed a system to do my work. I was thinking once I get my real DVD back I will re-install the system, but since this downloaded one working fine and updating, do I really have to go through all the fuss of reinstalling again?