You cannot delete the parent game. If you delete Pac-Man , your clone versions of Pac-Man will stop working entirely. 3. Merged ROMsets
If you have a perfect 0.138 set and apply the 0.138 -> 0.139 UPD, you will end up with a perfect 0.139 set. However, if you try to apply a 0.139 UPD to a random, mismatched folder, you will corrupt your collection. mame 0139 romset download upd
Acquire the official MAME 0.139 DAT file, which acts as the blueprint database for the set. You cannot delete the parent game
If you want to tailor your arcade setup further, let me know: Merged ROMsets If you have a perfect 0
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