Never mind, the individual rom files have bios files in themWell I did not know that...
Thanks for the info... I am still trying to get Boss Hacks Running for the NeoGeo - Some run for the CPS games but not many... I may try experimenting with extracting files and renaming files etc.
Dingoo A320, GCW0, RS-97 x2, Revo-K101, RS-90, PSP, GameGadget, New 3DS 128GB, PS Vita 200GB, RS-45, Gamebox Advance and a few other obscure devices