It allows you to keep the TV's AV1 for Sky/DVR in RGB and AV2 for VCR recording/playback in Composite (including stereo sound).
Otherwise you'll be restricted to RF - which means any videotapes will be transferred to DVD in mono as the RF modulators in VCRs and DVRs are not NICAM.
To transfer from VHS to DVD, I use a 'breakout adapter' in the VCR to TV Scart lead - this includes 3 x RCA phono sockets which I connected to the rear panel (AV4 IN) of my Panasonic E-55 DVR. This gives the best transfer quality (assuming that you don't have a S-VHS VCR) and avoids having to leave the TV on in order to loop the VCR input on the TV's AV2 back through to the DVR's AV1 input via the TV's AV1 with the DVR input selector set to 'A1'. Using the loopthrough in that way means that the TV has to be on to enable the signal path.
So - to record from Sky to DVD in RGB, I use 'A2' as the input selected on the DVR and to record from VHS to DVD I use 'A4'. To record from Sky to VCR, I use 'A2' on the VCR input; to record from DVD to VCR (not something I would normally do!), I use 'A1' on the VCR input - although copy protected DVDs will not be recordable (should you ever try); neither will copy-protected VHS tapes be transferrable to DVD via the 'A4' or RF connections.
Obviously DVRs are not standard with their connections etc, so if you're happy with your set up, I'd leave it as it is!
Isn't RGB just great?
Last edited by BEagle; 4th February 2006 at 16:44.