Reasing files on an ISO

[Cyber Akuma]

Ok, I DO own an original copy of Super Smash Brothers Melee. I really liked the intro and wanted to encode it into a xvid file I can watch on my pc. I downloaded the iso (which should be legal since I own the original) and attempted to read this file in Isobuster, but nothing came up. Is there any way to view the files in a gc iso? I dont care about running the game, I just want to extract the movies.