[mythtv-users] DVI v. Component

[Cory Papenfuss]

 	My understanding of DVI is that it's a multifaced spec.  It can be 
digital which I suppose would be best, and probably affected by broadcast flag 
for new equipment.  It can also have analog (RGB), so then it's basically the 
same as component.  Some people argue that RGB is better than component, but 
it's rather academic and depends on what the original source is.  Most digital 
video is encoded with YUV rather than RGB but the quality wouldn't be degraded 
unless it's converted from RGB to component in analog (e.g. A960 "transcoder"). 
I guess one could argue that it's slightly reduced quality.  I guess it would 
go something like:

RF-modulated composite < Composite < Svid \
 	< Component < RGsB < RGBHV = DVIanalog < DVIdigital

Whew! :)

-Cory


*************************************************************************
* Cory Papenfuss							*
* Electrical Engineering Ph.D. Graduate Student                         *
* Virginia Polytechnic Institute and State University 			*
*************************************************************************


On Wed, 11 Aug 2004 gabe at mustbethemoney.com wrote:

> All this talk of video quality (and it has been an education, and I have
> learned a hell of a lot on how it all works), leaves me with just one
> question regarding DVI in/output.  This has not been mentioned much, but I
> am assuming that if the TV has a DVI input and you have a card with DVI
> output that is the best possible signal-better than component?  From my
> understanding, this is a pure digital signal that the TV can then convert
> to an analog image, whereas a component output converts the digital signal
> to a very high quality analog signal with the chominance and luminence
> information.  Is this correct?  And if so, are we then talking bout:
> RF<Composit<S-Vid<Component<DVI ???
>
> Also, I know this has been mentioned before, but how will DVI be affected
> by the broadcast flag?  Will TVs with DVI inputs sold after June next year
> not take an input that does not have the flag?
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