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In Reply to: Re: difference in and explaination of "Anamorphic" and "enhanced for widescreen TV" posted by Roland on March 23, 2001 at 14:33:01:
Enhanced for widescreen and anamorphic are the same thing. Essentially the image is compressed horizontally on an anamorphic DVD. A widescreen TV stretches it out again so that it looks normal. A DVD player will actually remove every fourth vertical line so that the image appears normal on a 4:3 TV. This of course, doesn't help the picture any on a 4:3 TV, although it doesn't usually hurt it too terribly either. On the other hand, an anamorphic DVD is noticably better than a non-anamorphic on a widescreen TV.
Follow Ups:
After reading your post I did some further checking, and you are right its a 3 in 4 vertical reduction when shown on a 4x3 screen, however video encoded as 16x9 is automatically Anomorphic as the pixel ratio is still the same. Its the player throwing away the lines, thats not something that we have to be concerned with in the authoring process. Generally speaking when we are authoring pictures will either come in as 4x3 for video derived programmes (and some older film sources) or 16x9 for some modern video sources and most recent films. 2.35:1 will still have letterboxing top and bottom and 1.85:1 normally looks 16x9 due to overscan, or cropping during the telecining. The only time you are likely to get 4x3 letterboxed, is if someone has been two lazy to get the transfer done to digibeta in widescreen.Conclusion? After doing some further checking only thing you probably want to avoid is 4x3 letterboxed. Not that I've ever had to do any!
Enhanced for widescreen meens only that its widescreen encoded.
Roland
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