does HD-DVD use red-laser or blue-laser ?

  • Thread starter Thread starter videogamedude
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No, they did not. It was JVC.
Click to expand...

As I recall it, Sony invented it, and discarded the concept, and
then JVC went on to develop it with the current specs in use today.
The VHS was somewhat patterned after the U-matic that Sony
announced in 1969 and introducedin 1972, but with 1/2"
tape instead of 3/4" tape. As I recall the time line was Sony
developed/invented VHS in 1974/5, never even marketed it, and
went on to releast the Beta in 1975.

I then see [Camras - Magnetic Recording - ISBN 0-442-26262-0]
That Toshiba and Sanyo both brought out V-Cord machine in 1976,
the year after Betamax first hit - which was only availabe in a
console with a 19" TV set for about $2500. JVC finishes
development of VHS in 1976. [An interesting side note is that I
see and that time line that Sony released a 'magnetic camera'
recording images on small floppies in that year. I didn't realize
that electronic imagining for consumers went back that far - but
I'm assuming it was an analog video format].

When I got my Beta machine it had a serial number of just about
30,000, and the estimates were that at that time there were 50,000
households with VCRs. Those included the Cartrivision, The Quasar
VS, Sanyo V-Cord, Betamax and the new VHS which had been on the
market for about 2 months. I never dreamed VCRs would become so
commmon. That was the same year I got my first home computer too.

I'll try to see if I can find where that may be documented. The
trouble with online searches is that the original documents aren't
often on line, just new versions/recolletions that have only
been net-reachable for the last 10 years. And I threw out
all my video magazines from that era in the mid-1980s for lack of
room :-(

Bill
 
Alan said:
A large part of the reason that Sony is not using DVD in their
product name is that if they used DVD, they would have to pay
royalties to the companies that own parts of the DVD copyrights.
Click to expand...

Well, no. The term "DVD" isn't copyrighted at all. There are a few standards
(DVD-Video, DVD-RAM, DVD-R(W) etc) that are property of the DVD Forum, so
Sony can't use any of the names for these formats. But they can use a term
that includes "DVD" if they want...

The reason Sony isn't using anything with DVD is that it would imply that
their new devices are compatible to generic DVDs (playback DVD-Videos for
example) which they aren't.

Benjamin
 
Bill said:
As I recall the licensing on VHS was lower.
Right.

Sony invented VHS
Click to expand...

Wrong. VHS was invented by the Victor Company of Japan (aka JVC)...
but
didn't like it and moved on to Beta. Sony did NOT keep Beta to
itself. Other manufacturers made Beta machines and I had
an NEC that was had gorgeous pictures
Click to expand...

Right. Sony licensed Beta to other companies. But they had to call their
recorders "Beta" while Sony used the copyrighted term "Betamax"...
- as it also had
the SB1 - Super Beta 1 - that Sony had in their high-end machines
like my SL-1000 and perhaps the 900 series also.
Click to expand...

Right, but at that time there also were SVHS machines which used separate
Y/C recording and offered a much better picture than the SuperBeta which
still used composite recording...

Benjamin
 
Bill said:
As I recall it, Sony invented it, and discarded the concept,
Click to expand...

That's just an urban legend. Widespread, but still a legend.
and
then JVC went on to develop it with the current specs in use today.
Click to expand...

No. It also wouldn't be possible. Remember that Sony charged a lot for
licensing Betamax and even Umatic to other companies? You really believe the
exact same company would invest money in developing a video standard and
then giving it away for free?
The VHS was somewhat patterned after the U-matic that Sony
announced in 1969 and introducedin 1972, but with 1/2"
tape instead of 3/4" tape. As I recall the time line was Sony
developed/invented VHS in 1974/5, never even marketed it, and
went on to releast the Beta in 1975.
Click to expand...

Sonys Betamax system derived from their semiprofessional Umatic video
system. Both share a lot of common parameters, like the U-Loading concept.

VHS, which definitely was invented by JVC and not by Sony, had some
different approaches (i.e. M-Loading concept)...

Sony never did anything like VHS. They went directly from Umatic to their
home video system Betamax...

Benjamin
 
Benjamin Gawert said:
The reason Sony isn't using anything with DVD is that it would imply
that their new devices are compatible to generic DVDs (playback
DVD-Videos for example) which they aren't.
Click to expand...

Both Blu-Ray and HD-DVD will be backwards compatible with standard DVD.
This has been confirmed by both camps.
 
Joshua Zyber ([email protected]) wrote in alt.tv.tech.hdtv:
Both Blu-Ray and HD-DVD will be backwards compatible with standard DVD.
This has been confirmed by both camps.
Click to expand...

I remember that one of the two technologies could be set up with multiple
layers so that you could put standard DVD-Video on the same disc as the
HD video, and current players would only see the DVD-Video. That would
be the best thing for full compatability, but I don't see it happening,
as the only reason to do it would be to have new releases using the dual
format. This would mean no double sales, since people would already have
the HD version when they get an HD player.
 
Wrong. VHS was invented by the Victor Company of Japan (aka JVC)...


Right. Sony licensed Beta to other companies. But they had to call their
recorders "Beta" while Sony used the copyrighted term "Betamax"...
Click to expand...
Right, but at that time there also were SVHS machines which used
separate Y/C recording and offered a much better picture than the
SuperBeta which still used composite recording...
Click to expand...

But the S-VHS didn't compare with SB-1. My SL-1000s had a 6Mhz
bandwidth and the difference was visible. Those also had lower
chroma noise than S-VHS. Then my EDV-9500 ran with a 10MHz
bandwidth and using the standard test patterns, the resolution
came in between 500 and 550. You could see 500, but not 550, so I
estimated it was about 525.

Bill
 
Benjamin said:
VHS, which definitely was invented by JVC and not by Sony, had some
different approaches (i.e. M-Loading concept)...
Click to expand...

I'm on your side. I know I've read some articles on this, including
one just a few years ago, about the guy at JVC who they call "the
father of VHS". If there was a Sony origin of the technology that was
not mentioned, it would have to be one of the most dishonest pieces of
reporting that I've ever read.
 
Black Locust said:
so we have CD, DVD, VHS and... Blu-Ray?! How is the average Joe
even supposed to know what that is? HD-DVD works fine and is about as
Click to expand...

The answer is All-in-one Combo Drive, of course! Just read the petition
http://www.petitiononline.com/combo/petition.html, undersign it, and spread
the word about it. It is that simple.

I am not going to worry about the formats; I will buy a combo drive that can
handle them all.
 
Henri Tapani Heinonen said:
The answer is All-in-one Combo Drive, of course! Just read the petition
http://www.petitiononline.com/combo/petition.html, undersign it, and
spread the word about it. It is that simple.

I am not going to worry about the formats; I will buy a combo drive that
can handle them all.
Click to expand...

Dream on. The industry is headed in the right direction. The problem is
not solved with a combo drive. The issue is the format for the entire
commercial film and video industry in the next generation of formats.
 
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