I've not heard of any player that bypasses the FBI warnings. I haven't paid much attention to the mod market, so I hadn't heard of the UOP feature until the link you posted - you're only going to find that on players that have been modded, which particularly with the major brands (Denon, Pioneer, Panasonic, Toshiba, Sony, ...) will involve a warranty-voiding hardware change - allowing a software "cheat" like that to be factory standard would bring way too much grief down on them from the studios.