i used to do this all the time to play doom on ps1 multiplayer >.< pop in the disc on 1st ps1 once it reaches the menu hold hte button down, put it in the 2nd ps1 and it would load, then put it back in the 1st ps1 (we had a music cd in the 2nd ps1 and it would still play fine >.<) atleast thats how i think it went it was years ago that i did that
@Archangel Anyone that tries this method can kiss their Playstation goodbye.
[ image disabled ]
Quoting Myself:
I don't recommend anyone doing this it could damaged your PSX by yanking out the disc while its still running.You are way better off having a premodded PSX or using the magic swap disc.