: For games that originally used hard drives or CD-ROMs (like Killer Instinct ), you must place the CHD file in a subfolder named exactly after the ROM zip file. Setup and Common Pitfalls
MAME ROMs are not static; they change as better dumps of original arcade chips become available. docs.mamedev.org Compatibility: mame 0.119 roms
Pro tip: Look for a .dat file (ClrMAME Pro DAT) included in the download. This file is your bible. : For games that originally used hard drives