[opendtv] Re: Food for thought
- From: "Adam M. Costello" <opendtv.amc+0+@xxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 23 Feb 2007 04:23:52 +0000
Craig Birkmaier <craig@xxxxxxxxx> wrote:
> to deliver the full quality of HDTV you'll need the equivalent of the
> bits required for about 4 SD services
Why is it 4 rather than 6? (1920 * 1080) / (720 * 480) = 6.0.
And that's using the most generous DTV definition of SD. To capture the
resolution of analog NTSC, 480*480 is sufficient (right?), which would
make the ratio 9.0.
AMC
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