backing up game discs?

Now personally I am an anal retentive crazy person when it comes to my game discs (the boyfriend is even worse than me, he disapproves of a game ever being put in another game's case, even temporarily!) but for those of you out there prone to losing, scratching or otherwise effing up your expensive game discs, here's an alternative for you. I'm sure software like this has existed before, and I'm also pretty sure that most game companies would not approve, but if you want to back up your games, here's how to do it. I am as a rule very against piracy, especially when it comes to video games, so of course you should only be using this software to make backups of games you have already purchased. Again, not something *I* need with my immaculate game discs, but it might be of use if you make a habit of leaving game discs face down on the table or stepping on strewn-about cases. Or of course if you have an Xbox 360 that you plan on moving while turned on with a game disc in it...