oops..that should of been "/Users/hairball/Games/MAME/roms;/Users/hairball/Games/MAME/bios"
Well If I move bjourney.zip over to MAME's rom folder (which I use for arcade games and sit in the same folder as MAME) it works this way -
/Users/hairball/Games/MAME/mame64 bjourney.zip -rompath "/Users/hairballs/Games/MAME/roms;/Users/hairball/Games/MAME/bios"
Anyway I did drag an drop the folders in the terminal window for rompath and swpath to make sure they were correct still no go.
Just for the heck of it I tried (which I know doesn't work) /Users/hairball/Games/MAME/mame64 aes -cart /Users/hairball/Games/Neogeo_aes/bjourney.zip
which launched aes but I just get a flicker and then a blue screen.
I'm pretty sure the paths are correct. Not sure what I'm doing wrong.