Hi guys - I'm relatively new to AV systems, so any help is appreciated. I've got a Panny DVR-5100 (h I believe). When I first got this (March 2004) everything was fine - recorded, played back etc. etc. Recently (last several months) if I want to watch a DVD whilst it's recording terrestrial TV to the HD, I get the following error message "Cannnot play a video that uses a different TV system, than the video being recorded" I've gone through the menus as much as I understand, and can't see any reason why this happens. I've got a simple set-up. Terrestrial TV into the RF on the recorder Scart to Widescreen Mitsubishi TV. If anyone can help, my wife will love you forever! Derek.