How To Rip PS2/Xenosaga Movies?

[Mark S99]

Hi, I was curious as to how I could rip the movies out of Xenosaga and view them purely for my own pleasure. However, when I put the DVD in my computer it only shows the disc as being 3.96 GB instead of its actual 8 GB size, and I don't see any of the movie files (extention .pss I think...).

I've been looking around to find a program that will either allow me to look at all the contents on a DVD9 disc so I can see and copy the movie files or a program that will search out and rip the movies from a PS2 disc onto the hard drive. Is there any program that will do any of these? Thanks in advance.