well I had a problem with my copy of mgs trying to get it to read disk 2 after beating sniper wolf. well I fixed it and here is my solution.

http://www.gamespot.com/ps/adventure/metalgearsolid/show_msgs.php?topic_id=m-1-43213023&pid=197909&msg_id=m-1-473239617#m-1-473239617