Re: WS TVs & standard dvds???
- From: Alan F <afiggatt1@xxxxxxxxxxxxxx>
- Date: Fri, 31 Aug 2007 18:56:28 GMT
Kimba W. Lion wrote:
phil-news-nospam@xxxxxxxx wrote:
The DVD widescreen movies in 16:9 are only 360 lines high.
That's only true if the DVD isn't anamorphic. I only have one DVD like
that. All the others use the full 480 vertical pixels available.
It is a little more complicated than that. "widescreen" on DVDs is a
vague term which includes 1.85:1 or 2.35:1 movies. Anamorphic on DVD
encodes a 16:9 ratio image as 480 lines high by 720 pixels wide (yes,
the pixels are not square). A anamorphic 1.85:1 movie, which is often
slightly cropped to 1.78:1, will use all 480 lines. A anamorphic 2.35:1
movie, however, has black bars encoded in the picture data with 360
vertical lines used by the movie image. The horizontal resolution is
still 720 pixels.
In general, I should add, that movies on DVDs can look better on a HD
TV as the HD TV has the horizontal resolution to show all 720 pixels
while ye old SD CRT TV usually doesn't.
Alan F
.
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