I posted before but no luck so I am giving it a shot here. My boss bought a Hyunday HV-510 and I looked on this site and on others to try to find how to change the region its presently 3 because he bought it in asia to 1 or free region ...I am desperate because it is of no use to us at region 3 but since they bought it they wont buy another one. All our dvd's are legit. we teach therefore this is for educational purpose. Please anyone know what to do... I tried all the ones on this site with no success. also do you know how to change the language???It's in whatever korean when we open it....so of absolutely no use for US! lol