MAME 0.78 represents the codebase from December 2003. A "ROMset" is the complete collection of arcade game files verified to work perfectly with that exact version of the emulator. Why MAME 0.78 is So Popular Today
What are you planning to run these games on? mame 0.78 romset
The answer is hardware. The explosion of cheap, ARM-based retro handhelds (Anbernic, PowKiddy, Miyoo, Retroid Pocket) changed the game. These devices generally run on or RetroArch , and the core most frequently optimized for these low-powered chips is MAME 2003 Plus . MAME 0
In the RetroArch and RetroPie ecosystems, the emulator core based on MAME 0.78 is known as . The answer is hardware
In arcade emulation, . If you try to run a modern MAME 0.250 ROM on a MAME 0.78 emulator, the game will likely crash or fail to load because the internal file structures and dump definitions change over time. Why MAME 0.78 is So Popular Today
For MAME 0.78, most users prefer a set. This means you can download sf2.zip (Street Fighter II) and it will work immediately without needing to download the parent sf2world.zip . It takes up more hard drive space, but it is much easier to manage for casual users.