In the terminal gets this error Warning: -video none doesn't make much sense without -seconds_to_run 2016-09-01 15:15:36.969 mame64[4764:507] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to /var/folders/gb/414s6fjs7nqg33j_txx377pm0000gn/T/org.mamedev.mame.savedState logout