I saw a while back a guy in U.K. selling some type of factory service CD that makes Denon 2200 and 2900 region free. He claimed it's completely safe and won't void warranty. Has anyone heard or tried something like this? I made my cheap Samsung DVD player for my bedroom region free with some remote control key combination that was posted on the internet without any problems. Until now I've never seen any region free hacks on high-end players other than Pioneer Elite, but the hacks for Elite models were hardware modified. I know that messing with firmware via CD can be a disaster.