Re: Inaccurate information re whether DVD is NTSC or PAL
- From: Doug McDonald <mcdonald@xxxxxxxxxxxxxxxxxxx>
- Date: Wed, 31 Oct 2007 09:28:38 -0500
William Sommerwerck wrote:
I doubt there is any major difference in image quality between NTSC and PAL.
When a DVD is played back on good equipment, the only quality difference
is in the vertical resolution. NTSC and PAL M (Brazil) are essentially identical.
The PAL disk presumably has more scanning lines (625 vs 525), but the color
is encoded exactly the same way (which has nothing to do with either NTSC or
PAL color), and there is no broadcast-channel limitation on horizontal
resolution.
In fact, given a fixed encoding rate, the NTSC disk migh actually display
greater horizontal resolution.
Not true for the usual DVD. Standard DVDs, PAL and NTSC, have the same
horizontal resolution.
If I'm wrong about any of this, please correct me.
You are not wrong. PAL and NTSC are RF transmission formats, and
simply have no meaning when referring to DVD. The line count difference
does matter. Transmitted PAL has half the vertical color resolution
of NTSC, but this difference does not apply to DVD.
Doug McDonald
.
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