Posted by Bill McClain on 01/31/07 22:07

On 2007-01-31, SFTVratings_troy@yahoo.com <SFTVratings_troy@yahoo.com> wrote:
> For comparison other standards are:
> 240 - VHS (ditto Betamax)
> 330 - NTSC broadcast
> 425 - laserdisc (ditto S-VHS)
> 540 - DVD

NTSC DVDs have 720 x 480 pixels, PAL DVDs have 720 x 576. (I see 704 x 480
discs sometimes, usually non-amamorphic letterboxed titles).

Into this you can put either 4:3 or 16:9 material; note that in no case do you
get square pixels. The display always has to scale one dimension more than
another.

By comparison, HD-DVD and Blu-Ray are 1920 x 1080, always 16:9, square pixels.

-Bill
--
Sattre Press The King in Yellow
http://sattre-press.com/ by Robert W. Chambers
info@sattre-press.com http://sattre-press.com/kiy.html

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