What is MAME32? How is it different from regular MAME?
MAME32 is a frontend, or GUI (Graphical User Interface), for the command-line versions of MAME. When you have properly installed a game’s ROMs (and samples, where needed), the frontend will automatically pick the right screen mode, options, etc., that you would otherwise have to specify with command-line parameters. You can change each game’s settings, too, and the frontend will remember them. In other words, MAME32 makes command-line MAME a much easier and convenient point-and-click program. MAME32 can display screenshots (pictures) of each game, information about the games (history, cheats, etc.), and other handy stuff.