Backing up PS2 games with Nero

Are Playstation 2 games on CD or DVD? Can I back these up using Nero 6?

Thanks for your replies.

playstation 2 games are on both cd and dvd you can back up the dvd based games with nero but you must have a dvd writer and a modchip as for cd based they have libcrypt protection you can back them up with clone cd or alcohol and you only need a cd writer for them…