Posted by Joshua Zyber on 10/09/06 22:26

"Steve Roberts" <steveroberts@compuserve.com> wrote in message
news:452a31a0.17549404@news.reith.bbc.co.uk...
>>- A 4:3 image on DVD fills the entire 720x480 pixel grid and uses all
>>of
>>those pixels.
>
>>- An anamorhic 16:9 image on DVD also fills the entire 720x480 pixel
>>grid, using the exact same number of pixels.
>
> Neither of those statements is actually true. Both are basd on the
> analogue video standard. Both 4:3 and 16:9 occupy the middle 702
> pixels (or 704 according to some specs) of the available 720. The
> rest is analogue blanking. Most companies do in fact zoom in slightly
> to fill the entire frame, resulting in an image which is actually
> slightly wider than it ought to be - approx 1.37:1 instead of 1.33:1

Steve, I simplified my argument for the benefit of the o/p, who was
clearly having difficulty grasping the concept. You're arguing
semantics, which will only serve to confuse him further.

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