Just to add a few more facts, MDG sets are dumps from Neo-Geo AES cattridges, instead of dumping them directly from the arcade boards. I still have a couple of MDG sets floating around as well. The original NRX supported MSDG sets, because back then (1999) MDG sets were still a big deal. After that, these sets gradually lost popularity to the arcade dumps. Isn't that KOF 10th set encrypted, and that it doesn't reaslly work in NRX unless you can find a fully decrypted version? I don't like hacks so my overall interest is fairly low.