I have some DVD's of PS2 games. I want to create a ISO image of those disc so that in future if my disc is rotten out I can create a new one. I need a bit instructions for the same. I have Nero in my system. So how can I create a ISO image of the games. Also I want to know does PS2 supports backward compatibility. Does it supports PS1 games. And recently one of my friend had purchased a PS2 from JAPAN. So what is difference between a PS2 from JAPAN and a PS2 which is sold in US.