this is my setup (comes from linux..but you get the idea for windows:)
# Generated by Attract-Mode v2.6.0
#
executable /usr/bin/retroarch
args -L /usr/lib/x86_64-linux-gnu/libretro/neocd_libretro.so "[romfilename]"
rompath /home/user/retroarch/neocdz
romext .chd
so it should be:
# Generated by Attract-Mode v2.6.0
#
executable Q:\RetroArch\retroarch.exe
args -L cores\fbneo_libretro.dll "[romfilename]" <-- you
might need the FULL PATH here for the core!
rompath Q:\Roms\SNK Neo Geo CD
romext .cue
Big thing to notice here is the core you are using...
better to use the core made for the NEO-GEO CD itself I think..than the final burn neo core
place your bios in your system/neocd folder (ex. what ever your bios folder is for retroarch and then in a sub folder called "neocd" place your neogeo bios in that folder)
and some of those bioses are a pain in the tail to find!..I have looked everywhere!