[opendtv] Re: HDMI issues

Hi, 
Bert Manfredi wrote: 
> According to The Perfect Vision, p.43 in print version or p.31 at
> http://www.avguide.com/servlet/download/2485.pdf?download=yes

I can't download that because I am not registered. And generally I wish 
to keep it that way. 

> HDMI outputs are typically less accurate and more distorted than 
component 
> video outputs, in a survey of DVD players. See under the heading 
"Surprising 
> Results."
> Of the many products reviewed, only the Denon DVD-1920 and the Krell 
> Showcase provided better results with HDMI, and the others either 
> considerably worse (color shifts, image distortion), or almost 
> indistinguishable but not as good.

Can you please define "component video outputs" ? Are those SD interlaced 
(480i), SD progressive (480p), or HD up-converted (720p or 1080i) ?? 
I assume that the HDMI outputs are always up-converted to HD. 

Because, if the analog outputs are SD and the HDMI output is HD, then a 
conversion should have been done from Y'CbCr Rec.601 to Y'CbCr Rec.709. 
It's in the Gamma Sutra: 
  http://www.poynton.com/DVAI/DVAI_TOC_full.html#26
If either the source or the display forgets this distinction between SD 
and HD formats (thank you ATSC...) then a lot will go wrong. 

Best regards, 
-- Jeroen

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