Use Non-Merged or Split sets if you are an intermediate user. Beginners should start with a Non-Merged set to avoid missing parent ROM errors.
mame -listmedia mame pacman -romident
MAME/ ├── mame.exe ├── roms/ ← All game ROM zip files go here ├── chd/ ← CHD folders (each game in its own subfolder) ├── samples/ ← Optional sample sound files ├── artwork/ ← Bezels/overlays ├── cfg/, nvram/, diff/, inp/, sta/ mame 0239 roms install
: Inside your MAME installation directory, there is a default folder named roms . If it doesn't exist, you can create it manually. Use Non-Merged or Split sets if you are an intermediate user