Yeah, I read the documentation, but still couldn't figure it out.
However ...... you earn a hug.
Because of your remark regarding coh300t I did some more research, and with mame 0.178 some driver names were changed:
MAME 0.178 [#616]
2016/09/28
33.687 set (-1/+50), 11.008 parent (+17), 22.679 clones (-1/+33), 69 BIOS, 3.138 devices (+28), 812 CHD (+1), Samples 1.148, Working 11.552 (-173), NotWorking 22.135 (+222), Mechanical 15.111, NotMechanical 18.576 (-1/+50), 268.899 rom (+1553), 267.523 programs roms (+1539), 475 BIOS roms (+13), 901 CHD roms (+1), 834 samples roms
22 ren:
acpsx > coh1000a
atluspsx > coh1001l
atpsx > coh1000w
cpzn1 > coh1000c
cpzn2 > coh3002c
psarc95 > coh1002e
taitofx1 > coh1000t
taitogn > coh3002t
tps > coh1002m
vf3 > vf3c
vspsx > coh1002v
I already wondered what the new coh..... bios files were for while updating from 0.166 to 0.196, and now I know that they are old bios files being renamed.
Anyway, coh3002.ini now works as the driver ini for the Gnet games. Thanks again.
I'm just wondering why the Arcade32 0.196 frontend that I use on another PC, still mentions TaitoFX, TaitoGN etc. Nothing with regard to the renamed bios file names.
And to be 100% sure, I just deleted the taitogn rom, did an audit for all games and the Gnet games are still working, using the coh3002 bios rom.