Arcade emulation relies on precise folder structures. Your file directory should mimic the following framework:
: To play the 350+ new or updated games added specifically to this core, you must use a romset built or verified using the MAME 2003-Plus XML DAT. mame 2003 plus romset archive verified
: Contributors have backported support for over 350 games not originally in the 0.78 set. Compatibility Arcade emulation relies on precise folder structures