most burning software such as nero e.t.c will copy a game disc,but to use it afterwards you would need to get a no/cd or no/dvd patch/crack from gamecopy world.
Don't do it. Buying multiple copies is the best way of automatically informing the publisher and games designer that what they have produced has worth. If we all copy and stop buying no one will produce anything worth buying and we'll all vegetate down to the level of those �1.99 games in the bins at Woolworth.
to copy your pc games, you need the help of some kind of game copying software plus the dvd burner, and here is the useful one i've used and worked perfect. you may try it as you like:
http://www.copygames....-backup-pc-games.html
good luck!