I have a question for Sixtoe:
could you please list all arcade systems that have games on cd-rom, gd-rom and dvd?
In the laast few days I made a lot of searching in your site but I found this information unavailable for many systems: in many pages it is unclear if the systems needs boards, carts or those three optical discs.

Thanks a lot in advance for your reply!

Regards,

Brizio