The "MAME Exclusive" tag often marks a : a file that will become public in 6-12 months after the dumpers have had their "first look" exclusivity.
While MAME is an open-source project, gamers often use the term "MAME exclusive" to describe titles that are only playable via MAME because other emulators (like FB Neo) lack the necessary drivers. MAME currently emulates thousands of unique systems, including many that are "exclusive" to the platform due to their technical complexity. sp5001abin mame exclusive
If your MAME application version is 0.287, your ROM set must also be 0.287 to ensure compatibility. The "MAME Exclusive" tag often marks a :