It could represent a specific manufacturing batch for an electronic component or a vehicle part.
If you manage a non-merged or split MAME ROM set , multiple iconic games will instantly fail to load if this chip dump is missing from your system: Game Title System Board Required Parent BIOS Archive ( doapp.zip ) Tecmo Play System coh1002m.zip Rival Schools: United by Fate ( rvschool.zip ) Capcom ZN-2 coh3002c.zip Street Fighter EX2 ( sfex2.zip ) Capcom ZN-2 coh3002c.zip Street Fighter EX2 Plus ( sfex2p.zip ) Capcom ZN-2 coh3002c.zip Monster Farm Jump ( mfjump.zip ) Tecmo Play System coh1002m.zip The Evolution of MAME and "No Good Dump Known" Status
Suggest for those specific games. Let me know how you'd like to proceed . MAME 182 - several roms not working