I was going to quit trying, but news from a Gamestop manager who owns the MVS version says the US PS2 Chaos is due June 23. OK, James. I think the best bet is MAME, I have 77.1b, and SVCPlus is already in the ALL GAMES list, so I know that it's compatible. I have the SVCPlus rom set, and have used ISPxp to add the patches, and I've changed the names as needed, Ive set the directory to the ROM folder that contains the SVC rom zip folder, the newest BIOS zip folder, and the DAT file. I can't imagine that I'm missing anything. But if you can figure it out, great.