Recently bought an LCD TV for the bedroom and find the easiest way to connect the DVD player is using the component connections (Red, Blue and Green phono sockets if I recall correctly).
Without wanting to re-ignite the 'high quality digital leads are a con' debate am I right in assuming that the component connections are analogue and I would therefore benefit from using quality interconnects. I seem to recall my old CRT TV had these connectors although never used them but assume they must be analogue to be on a CRT TV.
I don't have a specific interconnect with red, blue and green plugs but have a spare 'higher than normal' quality yellow, red and white lead for the composite video and left and right audio and can see no reason why they will not do the job equally as well (apart from the colour of the plugs being wrong). How should the quality compare with other methods of connecting such as SCART only or composite?
I realise these connectors are for video only - I have optical audio connection through a home cinema amp.
Any comments gratefully received.

Just talking about the signals for a second...

RGB via SCART with be virtually the same quality as a basic component connection.

Progressive Scan component (576p) should look better if the DVD player and TV do a decent job of handling the signals correctly.

Composite (the yellow connector or via SCART) is pretty much the lowest quality connection for a video signal that isn't RF (aerial). If you have the chance to use something better such as S-Video, RGB or Component then you will get a cleaner and more detailed image.

Talking about cables...

A reasonable SCART cable with decent shielding will do perfectly for SCART RGB. With so much emphasis on HDMI you might be able to pick up a secondhand IXOS or QED SCART cable for less than a tenner. A good investment IMO

For Component it really depends whether your going progressive or not.

First off, the cheap/free yellow, red & white cable is crap. They're rarely proper 75 Ohm video cables and they usually have very poor shielding.

Next, for a standard Component connection you can use any reasonable 75 Ohm coax. Soldered-on plug ends will compromise the quality no matter how expensive the cable. Always go for compression fit 75 Ohm plugs for the best results. Maplin's £1.50 per metre aerial cable with decent compression connectors would work fine.

For progressive scan you want something a bit better. Very few people know it, but for about £2.00 a meter you can have the best quality analogue and serial digital cable available if you know who to talk to I can use this stuff to send RGB or Component at 1080p from scalers to 9" CRT projectors.

Composite is the lowest quality possible, don't consider it. RGB and Component are almost identical in quality, any difference won't be visible, and probably isn't measureable either.

As with most leads, there's a lot of rubbish about them, you are unlikely to see any improvement with expensive leads - I've compared 10m long cheap phono leads, and 10m long expensive Component leads - I couldn't see the slightest difference, and neither could anyone else.

If your existing leads look fine, then they are.