I am such a noob in the Mac world, I have no idea if this is do-able or not. When I was using Windows machines, I would always burn a backup of my game disks, and then play using the backup and store my original disk. Can I do the same on my iMac? I have a new copy of Sims 3, and I want to copy it and use the copy. Not trying to do anything illegal. Just protecting my investment.