Hello, this is my first time in here. I read and search for the dvd player region change on this site. At work we have a Hyundai HV-510 dvd player which is set region 3 and we need it to be region 1 (or free region even better!) I tried all the ones you offer on this site and none worked...I need to get it ready by MOnday afternoon or I'll be in trouble. Do you know of other sites (http address appreciated) who might have it? I need help thanks in advance!