Posted by Marty on 01/30/06 20:38

Somewhere around Tue, 24 Jan 2006 01:37:50 GMT, while reading
rec.video.dvd.players, I think I thought I saw this post from "Jack Dotson"
<jdotson@stx.rr.com>:

>
>"Marty" <this.address@is.invalid> wrote in message
>news:c2uat19ano1lj0rui9kvrshr0tb8p29420@4ax.com...
>> Somewhere around Mon, 23 Jan 2006 15:10:29 -0600, while reading
>> rec.video.dvd.players, I think I thought I saw this post from willbill
>> <trek@worldwide.net>:
>>
>>>Jack Dotson wrote:
>>>
>>>> <manitou910@rogers.com> wrote
>>><snip>
>>>
>>>>> In the meantime, a decent HDTV display is well worth
>>>>> the price if you have a progressive scan DVD player.
>>>
>>>
>>>> Why a progressive scan? This is something I've been
>>>> trying to figure out.
>>>
>>>
>>>me too!
>>>
>>>
>>>> I've read regardless of the format input to my Hitachi HDTV,
>>>> it converts it to 720p, it's max resolution.
>>>>
>>>> I have a progressive scan DVDP (Sony DVP NS999ES), but I actually
>>>> get better results when I feed my set 480i vice 480p.
>>>>
>>>> Because of this I was also curious if the upconverting DVDP
>>>> would be worth while.
>>>
>>>
>>>is an "upconverting DVDP" a DVD Player?
>>>
>>>if yes, are they hard to find? how much
>>>more do they cost than a normal DVD player?
>>>
>>>
>>>> If I understand correctly they upconvert 480i/p to 720p or 1080i.
>>>> Since the set does this too, what good are these for HDTV's?
>>>>
>>>> What am I missing?
>>>
>>>
>>>maybe the answer is simple? but so far,
>>>i think the answer is buried somewhere in
>>>the complex subject of video/TV interlacing,
>>>and afaik you need to start there
>>>
>>>even if the answer re a progessive scan DVD
>>>player is simple, you're likely going to need
>>>some background on interlacing to understand it.
>>>see: http://neuron2.net/LVG/default.htm
>>>
>>>also, you refer to your HD TV's 720p
>>>capability (above)
>>>
>>>afaik, DVD players only send out 480i
>>>
>> Yes, but to play it on an HDTV, you need to upconvert it. You can do that
>> either at the DVD player, or at the TV. Now, if you normally connect the
>> DVD player to the TV via analog cables (component, S-video, etc), then you
>> are converting the digital signal to analog, then converting back to
>> digital
>> in the TV. A better way would be to leave it in the digital domain,
>> convert
>> it to HDTV digital, then send it to be used directly by the TV.
>>
>> --
>> Marty - public.forums (at) gmail (dot) com
>> "Those are my principles, and if you don't like them...
>> well, I have others." - Groucho Marx
>
>So if I had a digital HDMI or DVI connection to my TV from a 480i DVDP then
>it would be unconverted at the set and no real advantage to have a
>upconverting DVDP? Therefore, it's the digital connection that's more
>important.
>
Probably so, as you eliminate the D/A and A/D conversions. But there are
good and bad converters for converting the resolution, so it depends on how
good the one is on the TV, if it has one. I don't know that all TVs would
upconvert the signal. Some may simply display it at whatever resolution it
gets.

--
Marty - public.forums (at) gmail (dot) com
"Those are my principles, and if you don't like them...
well, I have others." - Groucho Marx

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