How to downsize MGS:Substance to one DVD?

[Devious]

I would be very willing to rip out the video (like the huge intro) so i can size it down to one DVD-R, if any one could give me advice, or point me to tool that can extract/repack the dat files on the MGS disk then i would be a happy camper

Also those with released versions could do the same, mines a back up from a DVD.

Please let me know, thanks.
-=-=-Devious