MAME 0.139u1 sits at a critical junction. By 2010, the emulation of 2D hardware (Capcom CPS-1/CPS-2, Neo Geo, Sega System 16) was highly mature. Therefore, the ROMs for this version are highly stable, making them ideal for users prioritizing compatibility over the bleeding-edge accuracy of modern MAME versions.
MAME changes its ROM definitions constantly. Between 2010 and 2024, hundreds of games were redumped with better accuracy. roms for mame 0139u1
If you want, I can expand any section into a full paper-length draft (e.g., produce the complete Background, Technical Deep Dive, and Case Studies with code excerpts and citations). MAME 0