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Posted by ~P~ on 04/11/06 00:59
Joshua - You missed my point, and Jeff confirms it in the next post. At
25Mbs, plus 17Mbs HD audio, only Blu-ray offers the necessary thruput to
deliver both at maximum resolution and quality.
AVC1 has not been confirmed to be better than MPEG2 at higher bit rates.
That is key - AVC1 delivers HD content much better at LOWER bit rates (over
the air), but this isn't over the air compromised HD video - this is the
real deal, as good as it gets.
In testing by Blu-ray of AVC1 when trying to determine which codec to use,
it found MPEG2 to be superior at the bitrates that would be used by Blu-ray
discs. Not that AVC1 or H.264 won't end up being used all the time, just
don't put to much into it just because it's new. Heck, you hate Blu-ray
even though that's new, but are ready to jump in the bath with AVC1. ;o)
Just figure that not all things are so cut and dry and Blu-ray is not the
'devil technology' that some make it out to be.
Of the two formats - Blu-ray is the only one that has enough storage AND
bandwidth to deliver HD video and HD audio at ultimate quality.
Yet, how this plays out in the real world, with actual movies, videos, and
audio is still up in the air. Just on paper right now you know.
"Joshua Zyber" <jzyber@mind-NOSPAM-spring.com> wrote in message
news:G%r_f.5237$i41.1176@newsread1.news.atl.earthlink.net...
"~P~" <bmxtrix2005@cox.net> wrote in message
news:Fam_f.334$ZW3.33@dukeread04...
> There are DVD disc players that can support HD playback including
> 1080p.
> Your cable box could deliver 1080p. The issue is that video must
> actually
> be compressed to fit onto the discs themselves. The more storage
> space you
> have, the less compression that needs to occur to that video. The
> higher
> the allowed bandwidth of the player, the lower the compression needs
> to be.
Both HD-DVD and Blu-Ray have more than enough storage capacity to hold a
high-definition movie at excellent quality. They both support VC1
compression that is more effecient than MPEG2 and can store a lot more
content in the same space. Ironically, only HD-DVD will actually be
using VC1 compression right out of the gate, while the first Blu-Ray
titles will be using the less efficient and more space-hogging MPEG2,
negating their storage advantage.
Even if we get to the point where Blu-Ray does have a lot more free
storage than HD-DVD, there is a point of diminishing returns with any
compression format where less compression brings you negligible
difference in quality. You don't honestly believe Blu-Ray will use that
extra storage for higher audio and video bit rates anyway, do you? Of
course not, they'll use it to store interactive games, and fancy 3D
animated menus, and commercials, and forced anti-piracy announcements,
and other useless crap that no one really wants in the first place and
has nothing to do with quality movie delivery.
> As for the audio - the HD audio standards are part of HDMI 1.3 and are
> included capabilities on HD-DVD and Blu-ray disc. As I said though,
> with
> HD-DVD video has to take a hit when these HD audio formats are used
> with
> those discs while Blu-ray has the bandwidth to maintain a higher
> quality
> video signal.
This is pure FUD. Both formats are more than capable of delivering high
quality audio and video.
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