The easiest way to make a backup of your favorite video game is to download a program that will let you convert the game into a .iso file. By doing this you are creating a format that your playstation will be able to read if you have a mod chip installed. If you don’t have one of these installed a you will want to copy ps2 games with a game copying software. This will let you get around the copyright defenses most systems have and let you play game that you have copied with the software. This is the easiest method and fairly inexpensive.