: Version mismatch. Your ROM is for a different MAME version. Fix : Rebuild your set using a ROM manager with the 0.239 datafile.
| Category | Approximate Size | Description | |----------|----------------|-------------| | | 500–600 GB | Contains every game as standalone, including all parent and clone ROMs. | | Split set | 300–400 GB | Separate parent ROMs, clones only contain differences. | | Merged set | 200–300 GB | Maximum compression; clones and parents interleaved in one zip per game. | mame 0.239 roms
Knowing the hardware can help me give you specific performance tweaks. AI responses may include mistakes. Learn more tkssitch's Content - Page 2 - LaunchBox Community Forums : Version mismatch
. Searching for "MAME 0.239 Reference Set" there usually yields the most complete and verified results. | Category | Approximate Size | Description |
Your ROMs are only half the equation. MAME 0.239 runs best with proper configuration: