: A full merged romset (excluding CHDs) is roughly 30GB to 36GB . Adding CHDs (Compressed Hard Disk images) for newer titles can increase this significantly.
In 0.139, samples went into /samples/ . In 0.139u1, they must be sample.zips (e.g., puckman.zip containing puckman.wav ).
: The legal way to acquire ROMs for MAME is to dump them yourself from original arcade hardware you own or have permission to dump, or to obtain them from a reputable source that has the legal right to distribute them. mame 0139u1 roms list
The "full" set for this version typically contains over 8,000 sets (including BIOS files and clones). You do not need to download the entire set to play, but having the correct version is vital for the games to load.
If you are curating a custom "Best Of" list from the massive 0.139u1 catalog, these are the verified, highly compatible pillars of the set categorized by genre: 1. Golden Age Classics / mspacman (Pac-Man / Ms. Pac-Man) galaga (Galaga) donkeykong (Donkey Kong) frogger (Frogger) digdug (Dig Dug) centipede (Centipede) 2. Beat 'Em Ups & Hack & Slash tmnt (Teenage Mutant Ninja Turtles - 4 Player) simpsons (The Simpsons) xmen (X-Men - 4 Player / 6 Player versions) avsp (Alien vs. Predator - CPS2) dndsom (Dungeons & Dragons: Shadow over Mystara) ffight (Final Fight) 3. Fighting Games sf2hf (Street Fighter II: Hyper Fighting) ssf2t (Super Street Fighter II Turbo) mshvsf (Marvel Super Heroes Vs. Street Fighter) mvsc (Marvel Vs. Capcom: Clash of Super Heroes) mk2 / umk3 (Mortal Kombat II / Ultimate Mortal Kombat 3) mslug through mslug5 (Metal Slug series via Neo-Geo BIOS) 4. Shoot 'Em Ups (Shmup) 1942 / 1943 (Capcom classic WWII shooters) dodonpachi (DoDonPachi - Legendary manic shooter) progear (Progear - Capcom/Cave collaboration) strikers1945 (Strikers 1945) How to Audit and Fix a MAME 0.139u1 ROM List : A full merged romset (excluding CHDs) is
Finding the exact ROM set can be challenging. Users on Reddit and arcade forums recommend the following approach:
Understanding the versioning is critical. MAME uses a semantic versioning system: You do not need to download the entire
Some arcade machines from the late 1990s and early 2000s used internal hard drives, laserdiscs, or CD-ROMs instead of standard silicon ROM chips. MAME replicates these using CHD files. For a full 0.139u1 experience with games like Killer Instinct or Area 51 , you need both the .zip ROM file and its corresponding .chd file placed inside a matching subfolder.
The Ultimate Guide to MAME 0.139u1 ROMs: Compatibility, Sets, and Emulation