I have to admit I'm a bit a of cynic. And the worst kind. An uninformed, ignorant cynic.
I've always used an HTPC to watch DVDs and HD component out on my HD DVR satellite receiver to watch HDTV. This works well with my CRT PJ, so I've never followed or paid any attention to any of this stuff. With HD DVD now a reality, it's becoming more important to me.
I understand that standard SDI is a big advantage for an SDI'd DVD player when you have a scaler with SDI input(s). On the other hand, HD DVD players, and satellite or cable receivers, already have digital outputs. So the question is, is the HDMI output good enough, or is it lacking and needs to be improved?
So maybe the manufacturers don't always implement HDMI properly. That makes that particular gear bad, not HDMI. Lets assume for this discussion let's assume that HDMI is implemented properly.
Bandwidth: A 6' sewer pipe can move a lot more water than a 3/4" garden hose. But when all you have to move is 10 gallons an hour, a drinking straw will easily handle the job. Anything else is overkill with no gains or benefits. Does HDMI have enough bandwidth to handle what we use it for in an HT environment?
HDCP: Even us CRT owners can get around HDCP these days, so as far as blocking usage, it's not an issue--at least I don't think it is. Tell if I'm wrong. Does the presence of HDCP interfere with or degrade the picture quality? If not, eliminating it doesn't really accomplish anything.