Ultimate Backup(or copy) of a cd?? Avoid scrapping cd?

[hAlO]

1- Is there an universal method to make a backup or a copy of most of games? Like using clone cd or neroBurningrom, etc. If yes, with wich program(s) and what is the method. Explain it here please. :P ( no answer yet)

2- Is there a way to verefy if an image of a game you juste have created is working before burning it on a cd? To avoid burning it on a cd and when you try it, it doesn't run, so you must put it in the garbage. Another way than burning it on a Cd-Rw. I think i read somewhere we can do a image of a cd and try it before burning it when it is again it your computer but i don't remember where and how and i'm not sur. So if someone can answer at leat one of my question, i would apreciate.
(this question has already an answer: Daemon tool, Thanks to munsterbuster )

Thanks