Tempest, did you make a lookup for the rom name in your script? I didn't review it line-for-line, but if it's sending the rom name, it won't work. I saw you mentioned that, so I'm assuming that isn't an issue... If it's only a couple games that aren't loading correctly, why not just trap those specific games with MAME_Loader and have it send the specific game number it needs with the zinc command line? For instance, check for "ehrgeiza" and if present, use "40" for the rom name instead of the game.