How do I burn PC games?

So I don’t have a lot of money and never buy a game when they first come out because of the cost. However, I am going to buy the Sims 3 game today (surprisingly) for my computer, and I was wondering if anyone could tell me how to burn a copy of the cd?

I want to burn a copy so I can use the copy to play off of and put the original disc away so it won’t get scratched or anything. I don’t want to spend $50 on a game only for it to get scratched and ruined right away. Please Help!!

Find out what kind of copy protection strategy the game has.

Sims 3 uses none of the big commercial protections but it strictly checks the media type.
Have a look at this thread for further information.