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Re: If current DVD's are not in HD, why does one need progressive scan output?

Posted by NoNoBadDog! on 04/09/06 20:52

"Paul L" <pstudy@netzero.net> wrote in message
news:Hr0_f.9483$4L1.1906@newssvr11.news.prodigy.com...
> Isn't S-video output good enough for current DVD's? Why component
> progressive scan?

You are misunderstanding something here...

Progressive scan is not HD.

A "regular" TV picture is composed of two fields; the first field is all the
odd lines and the second field is all the even lines; each field gets
displayed for 1/60th of a second, and two fields make up one frame. A field
only displays one half of the available video information, resulting in a
loss of definition. Progressive scan displays both odd and even lines at
the same time; all of the available video information is available all the
time. Progressive scan is superior to interlaced pictures (1080p is
superior to 1080i).

Bobby

 

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