I am in the process of moving from Maximus Arcade to GameEx Arcade Edition.  I am also using MameArcade64 with the Mame GameEx System Pack.  I have installed ROM Center and have checked all of my ROMs with it and cleaned them up.  Most of my ROMs work great, right from the All Games List and my Favorites list.  Several (Pacman, Ms Pacman, Tron, Donkey Kong and other classics) don't show up.  I can find them if I search for them.  I can add them to my Favorites list.  They are in the Custom.ini f