Sharp develops 100GB optical disc.

Sharp develops 100GB optical disc

By Tony Smith (tony.smith at theregister.co.uk)

Published Friday 8th July 2005 08:54 GMT

Sharp has developed a two-layer optical disc which could boost the
capacity of the next-generation Blu-ray format.

The 100GB disc uses what the Japanese giant calls a "super-resolution
functional film". Sharp came up with such a film for single-layer
media last year, but this week's announcement centres on an extension
of the technology that provides a sufficient level of transparency to
enable multi-layer discs.

Ready for what's ahead in IT? Switch on the best in IT events now!

In a dual-layer disc, the data-storage layer closest to the laser head
needs to be both reflective - to allow the data to be read - yet be
sufficiently transparent that enough laser light can pass through to
focus on the higher data-storage layer and then pass through again
after it's reflected off layer two's surface.

The Sharp disc is not BD-compatible, but a company representative said
that the firm was considering tweaking the technology to meet the
data-pit size specifications laid down by the Blu-ray Disc
Association, an EETimes report notes
(http://www.eetimes.com/news/semi/sho...eID=165700451).

Blu-ray supporter TDK has already developed
(http://www.theregister.co.uk/2005/05...four-layer_bd/) a 100GB
BD, but it's a four-layer job that bonds two regular 50GB dual-layer
BDs back to back, forcing users to flip it over to access the second
50GB.

HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing
a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®






"Arguing with anonymous strangers on the Internet is a sucker's game
because they almost always turn out to be -- or to be indistinguishable from
-- self-righteous sixteen-year-olds possessing infinite amounts of free time."
- Neil Stephenson, _Cryptonomicon_

Allan

"Allan" <> wrote in message
news:...
> Sharp develops 100GB optical disc
>
> By Tony Smith (tony.smith at theregister.co.uk)
>
> Published Friday 8th July 2005 08:54 GMT
>
> Sharp has developed a two-layer optical disc which could boost the
> capacity of the next-generation Blu-ray format.
>
> The 100GB disc uses what the Japanese giant calls a "super-resolution
> functional film". Sharp came up with such a film for single-layer
> media last year, but this week's announcement centres on an extension
> of the technology that provides a sufficient level of transparency to
> enable multi-layer discs.
>
> Ready for what's ahead in IT? Switch on the best in IT events now!
>
> In a dual-layer disc, the data-storage layer closest to the laser head
> needs to be both reflective - to allow the data to be read - yet be
> sufficiently transparent that enough laser light can pass through to
> focus on the higher data-storage layer and then pass through again
> after it's reflected off layer two's surface.
>
> The Sharp disc is not BD-compatible, but a company representative said
> that the firm was considering tweaking the technology to meet the
> data-pit size specifications laid down by the Blu-ray Disc
> Association, an EETimes report notes
> (http://www.eetimes.com/news/semi/sho...eID=165700451).
>
> Blu-ray supporter TDK has already developed
> (http://www.theregister.co.uk/2005/05...four-layer_bd/) a 100GB
> BD, but it's a four-layer job that bonds two regular 50GB dual-layer
> BDs back to back, forcing users to flip it over to access the second
> 50GB.
>
> HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing
> a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®
>
>
>
>
>
>
> "Arguing with anonymous strangers on the Internet is a sucker's game
> because they almost always turn out to be -- or to be indistinguishable
> from
> -- self-righteous sixteen-year-olds possessing infinite amounts of free
> time."
> - Neil Stephenson, _Cryptonomicon_


But what about this Optware Company? I heard about them several years
ago--that they developed a disc format called HVD (Holographic Versatile
Disc) that offers up to 3.9TB on a single disc. Now they're teaming up with
Toshiba and Fuji.

http://www.optware.co.jp/english/what_050706.html

http://www.theregister.co.uk/2005/02...iance_founded/

It seems to me that with that amount of data capacity, the HD-DVD and
Blu-Ray camps should maybe hold-off for awhile, as their discs offer little
storage ability compared to a Holographic disc. Anybody heard more about
them (HVD's)?

Morgan

Morgan

"Morgan" <> wrote in message
news:SbSdnTo1-7KaK1PfRVn-...
>
> "Allan" <> wrote in
> message news:...
>> Sharp develops 100GB optical disc
>>
>> By Tony Smith (tony.smith at theregister.co.uk)
>>
>> Published Friday 8th July 2005 08:54 GMT
>>
>> Sharp has developed a two-layer optical disc which could boost the
>> capacity of the next-generation Blu-ray format.
>>
>> The 100GB disc uses what the Japanese giant calls a "super-resolution
>> functional film". Sharp came up with such a film for single-layer
>> media last year, but this week's announcement centres on an extension
>> of the technology that provides a sufficient level of transparency to
>> enable multi-layer discs.
>>
>> Ready for what's ahead in IT? Switch on the best in IT events now!
>>
>> In a dual-layer disc, the data-storage layer closest to the laser head
>> needs to be both reflective - to allow the data to be read - yet be
>> sufficiently transparent that enough laser light can pass through to
>> focus on the higher data-storage layer and then pass through again
>> after it's reflected off layer two's surface.
>>
>> The Sharp disc is not BD-compatible, but a company representative said
>> that the firm was considering tweaking the technology to meet the
>> data-pit size specifications laid down by the Blu-ray Disc
>> Association, an EETimes report notes
>> (http://www.eetimes.com/news/semi/sho...eID=165700451).
>>
>> Blu-ray supporter TDK has already developed
>> (http://www.theregister.co.uk/2005/05...four-layer_bd/) a 100GB
>> BD, but it's a four-layer job that bonds two regular 50GB dual-layer
>> BDs back to back, forcing users to flip it over to access the second
>> 50GB.
>>
>> HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing
>> a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®
>>
>>
>>
>>
>>
>>
>> "Arguing with anonymous strangers on the Internet is a sucker's game
>> because they almost always turn out to be -- or to be indistinguishable
>> from
>> -- self-righteous sixteen-year-olds possessing infinite amounts of free
>> time."
>> - Neil Stephenson, _Cryptonomicon_
>
>
> But what about this Optware Company? I heard about them several years
> ago--that they developed a disc format called HVD (Holographic Versatile
> Disc) that offers up to 3.9TB on a single disc. Now they're teaming up
> with Toshiba and Fuji.
>
> http://www.optware.co.jp/english/what_050706.html
>
> http://www.theregister.co.uk/2005/02...iance_founded/
>
> It seems to me that with that amount of data capacity, the HD-DVD and
> Blu-Ray camps should maybe hold-off for awhile, as their discs offer
> little storage ability compared to a Holographic disc. Anybody heard more
> about them (HVD's)?
>
> Morgan
>

It is a laboratory item. They will not even produce specs until 2006-1st
quarter 2007. Production won't ramp until 2008-2009 by some estimates.
There have been no manufacturing cost estimates that I have seen. It is, of
course, a total retooling of players and recorders etc. .. so we will see.
Is there an advantage of 1 TB over 100 GB for commercial movie use?

Alpha

In article <SbSdnTo1-7KaK1PfRVn->,
Morgan <> wrote:
>
>"Allan" <> wrote in message
>news:.. .
>> Sharp develops 100GB optical disc
>>
>> By Tony Smith (tony.smith at theregister.co.uk)
>>
>> Published Friday 8th July 2005 08:54 GMT
>>
>> Sharp has developed a two-layer optical disc which could boost the
>> capacity of the next-generation Blu-ray format.
>>
>> The 100GB disc uses what the Japanese giant calls a "super-resolution
>> functional film". Sharp came up with such a film for single-layer
>> media last year, but this week's announcement centres on an extension
>> of the technology that provides a sufficient level of transparency to
>> enable multi-layer discs.
>>
>> Ready for what's ahead in IT? Switch on the best in IT events now!
>>
>> In a dual-layer disc, the data-storage layer closest to the laser head
>> needs to be both reflective - to allow the data to be read - yet be
>> sufficiently transparent that enough laser light can pass through to
>> focus on the higher data-storage layer and then pass through again
>> after it's reflected off layer two's surface.
>>
>> The Sharp disc is not BD-compatible, but a company representative said
>> that the firm was considering tweaking the technology to meet the
>> data-pit size specifications laid down by the Blu-ray Disc
>> Association, an EETimes report notes
>> (http://www.eetimes.com/news/semi/sho...eID=165700451).
>>
>> Blu-ray supporter TDK has already developed
>> (http://www.theregister.co.uk/2005/05...four-layer_bd/) a 100GB
>> BD, but it's a four-layer job that bonds two regular 50GB dual-layer
>> BDs back to back, forcing users to flip it over to access the second
>> 50GB.
>>
>> HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing
>> a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®
>>
>>
>>
>>
>>
>>
>> "Arguing with anonymous strangers on the Internet is a sucker's game
>> because they almost always turn out to be -- or to be indistinguishable
>> from
>> -- self-righteous sixteen-year-olds possessing infinite amounts of free
>> time."
>> - Neil Stephenson, _Cryptonomicon_
>

>But what about this Optware Company? I heard about them several years
>ago--that they developed a disc format called HVD (Holographic Versatile
>Disc) that offers up to 3.9TB on a single disc. Now they're teaming up with
>Toshiba and Fuji.

>http://www.optware.co.jp/english/what_050706.html

>http://www.theregister.co.uk/2005/02...iance_founded/

>It seems to me that with that amount of data capacity, the HD-DVD and
>Blu-Ray camps should maybe hold-off for awhile, as their discs offer little
>storage ability compared to a Holographic disc. Anybody heard more about
>them (HVD's)?

In the latest issue of Studio there is an article on the HVD and
they expect to be shipping OEM product at the end of 2006.



--
Bill Vermillion - bv @ wjv . com

Bill Vermillion

"Bill Vermillion" <> wrote in message news:...
> In article <SbSdnTo1-7KaK1PfRVn->,
> Morgan <> wrote:
>>
>>"Allan" <> wrote in
>>message
>>news:. ..
>>> Sharp develops 100GB optical disc
>>>
>>> By Tony Smith (tony.smith at theregister.co.uk)
>>>
>>> Published Friday 8th July 2005 08:54 GMT
>>>
>>> Sharp has developed a two-layer optical disc which could boost the
>>> capacity of the next-generation Blu-ray format.
>>>
>>> The 100GB disc uses what the Japanese giant calls a "super-resolution
>>> functional film". Sharp came up with such a film for single-layer
>>> media last year, but this week's announcement centres on an extension
>>> of the technology that provides a sufficient level of transparency to
>>> enable multi-layer discs.
>>>
>>> Ready for what's ahead in IT? Switch on the best in IT events now!
>>>
>>> In a dual-layer disc, the data-storage layer closest to the laser head
>>> needs to be both reflective - to allow the data to be read - yet be
>>> sufficiently transparent that enough laser light can pass through to
>>> focus on the higher data-storage layer and then pass through again
>>> after it's reflected off layer two's surface.
>>>
>>> The Sharp disc is not BD-compatible, but a company representative said
>>> that the firm was considering tweaking the technology to meet the
>>> data-pit size specifications laid down by the Blu-ray Disc
>>> Association, an EETimes report notes
>>> (http://www.eetimes.com/news/semi/sho...eID=165700451).
>>>
>>> Blu-ray supporter TDK has already developed
>>> (http://www.theregister.co.uk/2005/05...four-layer_bd/) a 100GB
>>> BD, but it's a four-layer job that bonds two regular 50GB dual-layer
>>> BDs back to back, forcing users to flip it over to access the second
>>> 50GB.
>>>
>>> HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing
>>> a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®
>>>
>>>
>>>
>>>
>>>
>>>
>>> "Arguing with anonymous strangers on the Internet is a sucker's game
>>> because they almost always turn out to be -- or to be indistinguishable
>>> from
>>> -- self-righteous sixteen-year-olds possessing infinite amounts of free
>>> time."
>>> - Neil Stephenson, _Cryptonomicon_
>>
>
>>But what about this Optware Company? I heard about them several years
>>ago--that they developed a disc format called HVD (Holographic Versatile
>>Disc) that offers up to 3.9TB on a single disc. Now they're teaming up
>>with
>>Toshiba and Fuji.
>
>>http://www.optware.co.jp/english/what_050706.html
>
>>http://www.theregister.co.uk/2005/02...iance_founded/
>
>>It seems to me that with that amount of data capacity, the HD-DVD and
>>Blu-Ray camps should maybe hold-off for awhile, as their discs offer
>>little
>>storage ability compared to a Holographic disc. Anybody heard more about
>>them (HVD's)?
>
> In the latest issue of Studio there is an article on the HVD and
> they expect to be shipping OEM product at the end of 2006.
>
>
>
> --
> Bill Vermillion - bv @ wjv . com

The above linked articles claim the standard will not be set until the end
of 2006.

Alpha

On Fri, 8 Jul 2005 14:29:56 -0700, "Alpha" <> wrote:



>It is a laboratory item. They will not even produce specs until 2006-1st
>quarter 2007. Production won't ramp until 2008-2009 by some estimates.
>There have been no manufacturing cost estimates that I have seen. It is, of
>course, a total retooling of players and recorders etc. .. so we will see.
>Is there an advantage of 1 TB over 100 GB for commercial movie use?
>

Less compression?


Bye for now.

Clive.

Clive Savage

"Clive Savage" <> wrote in message
news:...
> On Fri, 8 Jul 2005 14:29:56 -0700, "Alpha" <> wrote:
>
>
>
>>It is a laboratory item. They will not even produce specs until 2006-1st
>>quarter 2007. Production won't ramp until 2008-2009 by some estimates.
>>There have been no manufacturing cost estimates that I have seen. It is,
>>of
>>course, a total retooling of players and recorders etc. .. so we will see.
>>Is there an advantage of 1 TB over 100 GB for commercial movie use?
>>
>
> Less compression?
>
>
> Bye for now.
>
> Clive.

If compression is perceptually indistinguishable?

Alpha