I have been looking through Never Dead's files and don't see anything really worth editing on a ISO, but this is what i could come up with. Please add anything that you find in case i overlooked something. FMV are the .bik movie files, and Text are all the txt files.
yeah I don't think there is much that can be done in the way of an ISO mod and to be honest not much point adding custom vids and text so I didn't see much point in editing it. Hopefully there is something in the xex.