How can I burn a DVD PS2 game?????

[burner]

I have heard that you need a DVD burner or writer, but how can you get a backup copy? I know that you also need a DVD disk and all but the all the software that's out right now doesn't seem to have the "capabilities" to backup PS2 games? Can anyone tell me I'm wrong and what program I can use to do this? By the way, I have a Toshiba 9.2 Gb DVD writer.