Ripping Virtua Fighter 4 Evolution

[GreyWing81]

I've got Kalisto's release of VF4E and I'm trying to trim it down to under 650MB. Anyone know how to get into the archives (CVMs I think) and what format the sound/music and movies are? I was thinking of downsampling the movies further and maybe bringing the sounds/music down to 22050hz if necessary.

Thanks in advance.