Bummer. The World Rally 2 and Thunder Hoop 2 fan base has to be disappointed. Those were probably the most popular titles so I shouldn't be surprised if those (Korean market region) were also protected.
I still hold out hope there might be a unprotected version of Thunder Hoop Strikes Back kicking around in Korea Somewhere i guess we gotta hope it turns up before the Fat Boy in the North gets it
Apart from that then i suppose we wont ever see those games playable in MAME unless someone figures out a way to dump out the contents of the Dallas MCU