I suspect not, just curious if it can be done atm.

I play most my videos on a high-end PC monitor, with 2048*1536 resolution
and DVI interconnects. If I take a full relolution pic form my digital
camera, scale it down to a lower resolution like 640*480 (which I /think/
is about dvd quality) and then back up again to fit the screen it is of
noticably lower quality. The difference isn't huge, but enough to be
obvious. I'm not sure if the effect would be quite so pronounced with a
moving image, but I'm sure it would help with high res screens, for example
most computer games look much beter at 1600*1200 than 800*600, even when
the screen is full of action.

Playing DVDs in a window looks fine, but full screen and you can see the
low res and compression artifacts. Some compressionists seem to use VBR to
compensate for the artifacts pretty well, but the bicubic filtering to
stretch the video to a high resolution makes it seem slightly blured. Maybe
I'm just spoilt, but I'd imagine that with mpeg4 on a dvd a hi-resolution
version of the technology would be possible.

I doubt such a thing is avaliable, which is a shame. Sometimes I wonder why
DVD was created as such a low-spec format. Of course it's a big
improvement over anything that came before but I don't get why they used
mpeg2 when mpeg4/divX are far beter technologies.

Comments?

--
Jim

"Jim" wrote in message
news
about DVD

I don't get why they used
mpeg2 when mpeg4/divX are far beter technologies.

Maybe it's got something to do with the several years that separated the
introduction of the two formats.
--
Malcolm

I don't get why they used
mpeg2 when mpeg4/divX are far beter technologies.

Maybe it's got something to do with the several years that separated the
introduction of the two formats.

Ok. I didn't realise DVD was as old as it is.

I've just checked and it seems the DVD format was officially anounced way
back in Dec '95. Mpeg4 was finalized almost 3 years later, in October '98,
and became an international standard the year later.

This is why I prefer the pc over dedicated devices - the ability to get a
new codec and play any format. Never mind, but it's a shame to be using
only a fraction of my system's potential.

--
Jim

"Jim" wrote in message
news
I don't get why they used
mpeg2 when mpeg4/divX are far beter technologies.

Maybe it's got something to do with the several years that separated
the
introduction of the two formats.

Ok. I didn't realise DVD was as old as it is.

They spent the first few years arguing about minor aspects of the
standard IIRC rather than getting it to market.

I've just checked and it seems the DVD format was officially anounced
way
back in Dec '95. Mpeg4 was finalized almost 3 years later, in October
'98,
and became an international standard the year later.

This is why I prefer the pc over dedicated devices - the ability to
get a
new codec and play any format. Never mind, but it's a shame to be
using
only a fraction of my system's potential.

It could be worse, the BBC have just started to push a 'new' digital
radio system which was finalized in 1992 to a fixed standard which can't
be upgraded and unlike DVD doesn't sound as good as its 50 year old
predecessor. Not even stereo much of the time. :-(
--
Malcolm

In message , Malcolm Knight
writes
It could be worse, the BBC have just started to push a 'new' digital
radio system which was finalized in 1992 to a fixed standard which
can't be upgraded and unlike DVD doesn't sound as good as its 50 year
old predecessor. Not even stereo much of the time. :-(

That's nothing :-)
I did some work for BT at Martlesham Heath in 1982 and they'd just
developed the technology for ADSL at that time [1] - but couldn't see a
commercial application for it then. When Cable came along (technology
that BT were not allowed to provide) they dusted it off, applied the
technology to a commercial system and made it their broadband consumer
platform.

[1] AT&T developed the same technology across the water at the
same time.
--
Tony Morgan
http://www.camcord.info

"Tony Morgan" wrote in message
...

That's nothing :-)
I did some work for BT at Martlesham Heath in 1982 and they'd just
developed the technology for ADSL at that time [1]

Ahh, the days when BT were able to spend up to 17% (IIRC) of its income
on fundamental research into telecomms. I wonder what that figure is
down to under Offcom and the other busybodies and what the consequences
for the country will be?
--
Malcolm

"Jerry." wrote in message
...
"Tony Morgan" wrote in message


I did some work for BT at Martlesham Heath in 1982 and they'd just
developed the technology for ADSL at that time [1] - but couldn't
see a commercial application for it then.

I doubt they could, considering that 1982 = height of the '80's
recession =
many companies going bust, and TELEX network was modern communications
to
most companies at that time when computers still needed a whole
building
just to house the main frame - IF the company had the funds to buy one
that
is....

Your timing is a little inaccurate here Jerry, I had a desktop computer
on my office desk in 1982.
--
Malcolm

Wow - sounds great, can i get films encoded to use it?

I'd be nice if eventually all films were streamed via ogg tarkin in master
quality, so with bit stripping it can be played on any connection speed or
resolution device, right up to cinema quality. Maybe in 15 years time...

--
Jim H

"Jerry." wrote in message
...
"Malcolm Knight" wrote in message


Your timing is a little inaccurate here Jerry, I had a desktop
computer on my office desk in 1982.

But you had no room for anything else ! g

Who were you working for then, a big company ?
I'm not saying they weren't around, just that they were not common and
most
companies were still using the TELEX network as an 'everyday' means of
(voice-less) electronic communications (most companies still had
typing
pools as well...) - emails and the web as used now did not exist. Yes
I know
the 'internet' dates from well before that date, basically there was
no
point in BT spending money on the infrastructure of something that had
no
use at the time IYSWIM.

They were not only uncommon but also regarded with great suspicion.
Desktop computers were banned by my employer (or at least the major
sub-division of it I worked in) and I had to buy my own. I only narrowly
escaped disciplinary action for using one but fortunately one or two of
the bosses had seen how much time was saved on preparation of all the
monthly performance stats.

And the name of this dumb company? British Telecom, a couple of years
pre-privatisation.
--
Malcolm

Try www.dvhsmovie.com for all your big American Movie releases!


"Jim H" wrote in message
news
Wow - sounds great, can i get films encoded to use it?

I'd be nice if eventually all films were streamed via ogg tarkin in master
quality, so with bit stripping it can be played on any connection speed or
resolution device, right up to cinema quality. Maybe in 15 years time...

--
Jim H