Right now im trying to figure out how to use MAME to its fullest, but i cannot figure out why some of my ROMs that i have for MAME only work on certain versions.


I've downloaded Mame32 ver 0.90ui and played Metal slug on it. It worked perfectly. But when i use a Version of MAME from this site the game doesnt work saying "its missing a rom or CHD file"


anyone know why this is? Im also trying to figure out where to get missing ROM or CHD files, but i cant find where.

EDIT: i cant remember the exact name of the MAME version i was using from this site but it wasnt the 64 bit (that doesnt work on my 32 bit computer ) and it wasnt the command link thing.