Your ROM set must match your emulator version. You cannot mix and match. For a successful mame 0239 roms install , you need a ROM collection specifically labeled as "MAME 0.239 ROM set" or a "Non-merged 0.239 set."
Many classic arcade systems (Neo-Geo, Capcom Play System, Sega NAOMI) require a BIOS—a set of system files separate from the game itself. mame 0239 roms install
Inside the roms folder, create a new folder named exactly after the game's short name (e.g., kinst for Killer Instinct). Your ROM set must match your emulator version