The answer is yes, you can open up GT2 on your PC, and extract the contents.
The CD contains the following files:
gt2.vol
gt2.ovl
faulty.psx
music.dat
scus_944.88 (I think this one can vary on version US,EU,Japanese)
system
The packed / compressed gt2.vol file is the one you want to
"play with", checkout the following site with utilities on how
to unpack / decompress this file.
http://www.geocities.com/mkreations/files/
The file gt2vol.zip willl unpack all the files to your PC's hard disc,
you might also want to pick up a TIM plugin for photoshop / paint shop pro,
many of the in-game images are in this format i,e: Wheel textures, a HexEditor is also recommended
In theory it would be possible to edit many ingame parameters like: textures, sounds & car models, so I think you could fix some "bugs" like incorrect hp ratings on some cars, i,e: Volkswagen Golf VR6 (201hp vs 147hp dealer vs track change) or create a new set of wheels, create new car colors, or better yet, create hybrid cars without using a memory card / Gameshark, imagine your own special version of a vehicle not included in the game, I would gladly give up the Golf V5 car spot and replace it with a VW Golf R32 (6 cylinder 4WD), etc.
hope that helps
im sure ive read it been done somewhere? how do you think emus work, they work by opening up the game? there is someone out there whos come ocross this.
