I own DC-X yes and everything that works runs 60hz but it only goes for original bought games since it can't read CD-R. When clicking a button while booting dc-x up brings u into a menu where u can choose ntsc or pal and vga support rgb support and tv out.
One game didn't work with DC-X so far i experienced and that was Hydro thunder usa....
BTW i own sega rally jap and virtua fighter 3tb jap and they run 60hz as ANY other game i own
