Can you put ps2 games on a normal DVD and still play it on a ps2?

You would need to have a "modded" console a.k.a "chipped" These chips can be expensive when consoles first come out, but being that the PS2 has been out for awhile you can probably find them cheap. Modding or chipping a console requires you to open up said console which voids the warranty. Many different chips are available, some you have to solder others are solder less.