[opendtv] Re: HD DVR for the antenna crowd

More than that...they are almost never MPEG2. Sony's initial releases were MPEG2, but I believe they've switched since then. The majority of HD DVD titles are VC-1, with a small number being H.264.


On 11-Jan-08, at 2:23 PM, Ron Economos wrote:

HD DVD and Blue-ray also use H.264 and VC-1 video. H.264 has a lossless
mode, but not at a bitrate that would fit on either blue laser format.

Ron

John Willkie wrote:

Uncompressed hd is 1.5 gb/sec. DVDs and HD-DVDs and BluRay are all MPEG-2
video, which by definition is compressed video.

Actually, "by definition" is a bit strong. I have never seen any mechanism in the MPEG-2 specification and annexes that would permit transmission of
uncompressed audio or video.  I'm only making the assumption that "no
mechanism" means "only compressed audio and video."

John Willkie



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