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Posted by ~P~ on 04/11/06 00:54
Jeff - take 25Mbs and add 17Mbs HD audio streams and guess what?
You are beyond the 36Mbs maximum transfer rate that HD-DVD offers.
But, still UNDER the 48Mbs rate of Blu-ray.
So, no matter how much or little room the entire video/audio takes up on the
disc, HD-DVD can't give the thruput to play it unless the audio is
compressed further or the video is compressed further.
While that is a fact, I have absolutely NOTHING to say about how this will
actually turn out in the real world. It just hasn't been tested or seen
head-to-head yet. I think both formats will prove to be excellent, but far
more studio support and far more hardware support and PS3 leads me to
believe Blu-ray will win the war. If the situation were reversed, I fully
believe that HD-DVD would win the format war. At this time, I have zero
vested in either technology.
Lots of 'potential' this and 'could be' thats going on. No "Hey, here it
is" happenning yet.
"Jeff Rife" <wevsr@nabs.net> wrote in message
news:MPG.1ea42dc7cf0030db98a44d@news.nabs.net...
~P~ (bmxtrix2005@cox.net) wrote in alt.tv.tech.hdtv:
> 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.
>
> This all adds up to better image quality possible (not cofirmed!) from
> Blu-ray over HD-DVD.
No, it doesn't. After you reach a certain limit with MPEG-2, you are
just throwing useless bits at it. For 1080/24p on a multi-pass compressor,
you can do the job with 25Mbps and have already reached the "throwing
useless bits at it" point.
Because of this, a 25GB disc is more than enough for a 2-hour movie,
and anything more is just going to be filled with lots of useless SD
extras.
--
Jeff Rife |
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