Is it possible to save the game on memory card form suikdoen 1 and load at the start of suikoden 2?
I think it should work if you just start a suikoden 2 game and save it (just to get the filename) and then rename your suikoden 1 save to overwrite it. Start a new game and it should hopefully see the suikoden 1 save.
I tried this exact method and it works just FYI for anyone reading this after the fact. I was using the PCSX Rearmed core.