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Re: D1, Encoders, and DVD
On Mon, 14 Oct 1996 12:55:01 -0700, you wrote:
>--- Forwarded mail from "Martin, Ron (MCA)" <rlmarti at mca.com>
>There have been a few questions lately about DVD related to monitoring =
>and encoded output. We at the MCA DVCC (Digital Video Compression =20
>Center) have several of the consumer DVD players straight off the =20
>production line from Japan and I can tell you they look GREAT!
>The players include a composite output as well a S-Video component =20
>output. The encoded output H. blanking is 10.8 and there are even 8 =20
>cycles of stable subcarrier that any Tek. WFM would be impressed with. =
>Anything left in the D1 master that you hoped the Accom (or any other =20
>encoder) would hide is now going to be out there for the world to see. =
> The colorimetry and level reproduction is remarkable. The vector =
>of program bars look like they are right out of the test generator. No =
>chroma noise, no over-modulation artifact, just clean pictures. This =20
>signal will be the cleanest and highest integrity ever delivered to the =
I am VERY interested in more information on your DVD experience.
In comparison to what does it look great? Digi-Beta? Beta-SP? =
S-VHS? Hi-8? VHS? Your local cable company feed?
What type of material were you looking at? Was there a mixture of =
commercials, a feature, test signals only?
What level of compression was used on the footage you saw? Was it the =
level of compression as that which would be required to put a two hour
movie with the umpteen audio tracks on a disk?
Did you see any blockiness or artifacting? What about on rapid motion
(quick pans, or people running, or a football being thrown)? Any dropped
or frozen frames?
Thanks for any info you can provide on this. The highly compressed images=
saw at the NAB were not very good at all, barely decent VHS quality.
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