Originally Posted by Zindar
On another forum, I was told that HDMI was better quality than component. In fact, I relied on his advice when I hooked up my TiVO to my PC monitor (iow, I'm using the HDMI output port for it.)
There is no right or wrong answer to the HDMI vs Component discussion. It entirely depends on the implementations of both.
Component analogue will require D/A conversion in the source and these days (with the exception of some CRTs) will require A/D conversion in the display. Both of these can cause a quality drop if the analogue processing and implementation isn't excellent (poor termination can cause reflections, poor quality routing can cause crosstalk, poor quality output/input stages can cause HF filtering, noise etc.)
However - just because HDMI is digital - doesn't mean that display implementations of HDMI inputs will be better. With HDMI and DVI you also have issues with levelspaces and subsampling potentially.
Whilst analogue component (as a consumer format) has a single level standard (unlike composite where the North America has a different level standard to other territories - even other NTSC territories!) whereas HDMI / DVI have a number of different options (RGB vs YCrCb, 4:2:2 vs 4:4:4, 0-255 levels vs 16-235 YRGB/16-240CrCb levels) so HDMI/DVI can potentially cause more issues with poorer quality pictures than Component if not set-up properly.
Often - but not always - HDMI is the better choice - though there are exceptions. In many cases there may not be a noticable quality difference - and the lack of HDCP negotiation with Component may make it preferable in some situations.
Personally all my kit is connected HDMI - mainly because I use PCM 5.1 audio over HDMI for a number of sources. However when I've used component sources they have also been excellent.