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Posted by Howard Brazee on 12/05/06 17:02
On Tue, 5 Dec 2006 11:09:14 +0200, "Jukka Aho" <jukka.aho@iki.fi>
wrote:
>That's understandable for OTA HDTV broadcasts. If the set has a built-in
>ATSC (HDTV) tuner/decoder it can read the aspect ratio flags straight
>off the digital stream.
>
>But what about playing back DVDs (which is what the original question
>was about)? How does the DVD player tell the tv set "this signal is
>full-screen 16:9" or "this signal is full-screen 4:3"?
It wouldn't take much programming for a decoder to determine the
aspect ratio.
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