It depends on the game. PS1 had more of a "standard" if you will when it came to videos but with PS2 there isn't one. Some games make it easy and have the videos in Bik (I think that's the name) format so you can play them in any video player supporting the codec. Some games use simple MPEG-2 files (might have varying extrensions) while others such as Final Fantasy X have the videos hidden within the disc and need a special program in order to rip them.