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    Invelos Forums->DVD Profiler: Desktop Technical Support Page: 1 2 3  Previous   Next
Anamorphic Widescreen ?
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DVD Profiler Unlimited RegistrantStar ContributorMithi
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Registered: March 13, 2007
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Germany Posts: 2,217
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Quoting mikl:
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So they haven't used the full resolution on the Casablanca HD discs? Are the black bars on each side encoded into the image? That's not optimal if you ask me.l

Why not? What would they gain if they use the full resolution?
Okay, Full-HD is 1920x1080 Pixel

Case 1: a 1,33:1 movie encoded with pillar boxed black bars.
The movie frame is thus 1440x1080 pixels real information with 240x1080 black pillars on either side, and will be shown on a Full-HD-TV with a resolution of 1440x1080 pixel with the additional black pillars.

Case 2: a 1,33:1 movie encoded 'anamorphic'
The movie frame on the HD-Disk (whether HD DVD or BluRay makes no difference) will be enchanced during the scanning to the full 1920x1080 pixel, but to have the correct Aspect Ratio the player or the TV have to pull it back by digital mumbo-jumbo to 1440x1080 pixel plus the pillars. Same thing as Case 1.

What is the benefit? Nothing! And exactly the same goes for 2,35:1 and letterboxing.

Again: the anamorphic squeeze was not simply about "quality", it was about "quality if you have to put a 1,78:1 (or smaller) picture on DVD(!) an try to gain a few lines of resolution making use of a specific technical aspect of the cathode ray tube TV"
Neither "DVD" or "CRT" are in the picture with HD-TV so anamorphic goes overboard, and rightly so.

cya, Mithi
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 Last edited: by Mithi
DVD Profiler Unlimited RegistrantRifter
Reg. Jan 27, 2002
Registered: March 13, 2007
United States Posts: 2,694
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Quoting lmoelleb:
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Quoting Vega:
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Most modern widescreen TV's feature "Smart Stretching".  They can take a 4:3 image and stretch it to fill the whole screen and you'll barely notice unless you look real carefully.

Hmm, I guess we all have different trechholds for what we will accept. The only time I won't notice is when my eyes are closed.


My set has that feature, but it also has a setting that stretches the sides out and maintains the top and bottom ration intact, so that you lost a band of picture on the top and the bottom.  If you're watching something with closed captions, you'll be unable to read the captioning as a result, but most of the time you see a screen filling picture and don't notice the edges that are gone.
John

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DVD Profiler Unlimited RegistrantStar Contributormikl
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Registered: March 14, 2007
Denmark Posts: 235
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@Mithi:

You are right! I see your point. Thanks for enlightening me 

/Mikkel
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DVD Profiler Desktop and Mobile Registrantlmoelleb
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Registered: March 14, 2007
Denmark Posts: 630
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Quoting Rifter:
Quote:
My set has that feature, but it also has a setting that stretches the sides out and maintains the top and bottom ration intact, so that you lost a band of picture on the top and the bottom.  If you're watching something with closed captions, you'll be unable to read the captioning as a result, but most of the time you see a screen filling picture and don't notice the edges that are gone.


I do unfortunately notice sooner or later- people are missing the top of the head etc. After a few minutes of this, I get annoyed and switch to the standard 4:3 format. And no, it does not matter if I use the scale build into Windows Vista or the native scaling of my TV.
Regards
Lars
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