I've been creating a lot of threads asking for help lately, for some reason nothing ever works right for me =P

Well the title is self-explanatory, I downloaded the neo geo bios, but still can't get metal slug 3 to work, I downloaded the rom from this website, but wen I try to run it on MAME, even if I have the neogeo bios it says "The selected game is missing files or chd images"
Anyone nows how to play metal slug 3 on mame?

BTW, I tried it on other emulator and it worked, but I dont wanna have to use another emulator just to play one game, the other emulator only emulates neogeo