MAME reads game files from a folder called roms . Inside your main MAME folder, you will likely see a folder named roms . If not, create one. This folder is where you will place your legally obtained ROM ZIP files.
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Often hosts curated MAME ROM sets that are community-verified. Look for "MAME sets" uploaded by reputable users. MAME reads game files from a folder called roms
Inside that folder, create subfolders named emulators , roms , and artwork . create subfolders named emulators