Admittedly this is veering far off topic, but I can't seem
to resist...
On Monday 12 February 2007 12:20, Henry G Belot wrote:
[snip]
> The technical quality of the two formats is identical
no matter what any
> eagle-eyed reviewer may tell you. Detail in moving
objects is something
> the human eye has to interpolate because the eye has an
"exposure" of
> 1/16th of a second. There are so many factors that can
affect the way we
> /perceive/ detail in moving images that nothing but the
most tightly
> controlled double-blind laboratory tests could possibly
uncover any
> objective differences between these formats, and it's
highly unlikely
> that they would.
To that I would add that in my own research I noticed that
reviews including
upscaling DVD players found no objective difference between
an upscaled DVD
image and HD-DVD or blu-ray. Although DVD may not be the
highest end from a
still-frame perspective as soon as you have a moving scene
--- which is what
happens in most movies --- there just doesn't seem to be any
real difference,
especially when upscaled (and it is important to note that
upscaling doesn't
introduce any new information, it just eliminates jagged
edges).
Personally I doubt HD content in any format (HD-DVD or
blu-ray) will have the
uptake that DVD did. It just isn't sufficiently better from
a consumer/viewer
perspective.
Now to try and bring this back to topic? Umm... PostScript
is so much more
than just a page description language that PCL is not a
realistic competitor.
It would be (sorta) like comparing DVD to VHS -- yes, both
provide a storage
medium for a movie, but DVD provides (somewhat) random
access, multiple audio
tracks, toggleable subtitles, multiple camera angles and can
even lock you
out of commands in your remote ("user access
controls", blech!).
TIm Doty
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