> How do you get the second Screen (BIOS selection)? > Doubleclicking on the blazing Star entry results already in error message. Am i > missing a specific step? Do I need to put NeoGeo.zip in another BIOS(?)-directory? > I'm pretty sure, i've got the correct NeoGeo.zip in Roms Directory already...
I get the second Screen (BIOS selection) because MAME doesn't throw an error after selecting Blazing Star.
Something must not be correct with your files or setup as your error can't be reproduced here.
Having a correct neogeo.zip in your roms folder or rompath is good enough.
Code:
J:\MAME>mame64 -verifyroms neogeo romset neogeo is good 1 romsets found, 1 were OK.
J:\MAME>mame64 -verifyroms blazstar romset blazstar [neogeo] is good 1 romsets found, 1 were OK.