Nba live 07 PC game dvd backup

Ok, i bought the game nba live 07 for pc but its on the dvd… i know how to create a working backup with a cd but not a dvd… does anybody know how to make a virtual image or make a backup disk?? please help if you know how… thanks

I have tried clone cd, and then tryed mounting the dvd image, but it wouldn’t work… if anybody knows what i am doing wrong please help