new development on the evolution of Blu-Ray

[joeorc]

Tuesday, November 06, 2007
Sony Reports Progress in Holographic Storage

Sony managed to read and write on seven layers on holographic medium using the Micro-reflector method, further improving the company's previous achievements that stored data in 4 layers of a volumetric optical disc.

In the Micro-Reflector recording technology, a laser light emitted from a blue violet semiconductor laser diode is split into two so that one irradiates the front side of a volumetric optical disc medium as a reference light, while the other is emitted to the back side as a recording light. By precisely aligning the focal points of the two laser beams using servo technology, the two counter-propagating light beams focus on the same point on the disc's holographic recording material. Their interference creates a diffraction-limited size fringe corresponding to a 1 bit of information. Changing the focal points results in recording in more layers. During reproduction, light is emitted on the front side of the medium.

However, Micro-Reflector multi-layer recording does not avoid the issues met in multi-layer recording systems in general. The reproduction signal gets weaker as the system tried to read the deeper layers. In addition, a slow data rate is also listed as a problem.

Sony made progress in increasing the data transmission speed, memory density per layer and the number of recording layers. Tech-On publication reports that Sony managed to record data on a volumetric disc spinning at 1050rpm, 15 times faster than the company's previous demonstration, offering an equivalent data transmission of 3Mbps in case of 1-7PP modulated data (already implemented by the Blu-ray Disc).

Storage density was also increased to Gbytes per layer, for a 12cm disc.

Sony said that it calculated the error rates of reproduced signals on a 7-layer medium, with the maximum reported error rate to be 4.1 ? 10-4.

The company made the announcement at ISOM' 07, an international conference on optical memory, which took place Oct 21-25, 2007, in Singapore.

Sony also announced the results of recording and reading data on a 10-layer disc, suggesting promising eye-pattern signals.

Sony aims at the production of a a 500 Gbytes (25 Gbytes x 20 layers) 12cm disc by 2010.

http://www.cdrinfo.com/Sections/News...x?NewsId=21775

[XSilentCobraX]

Originally Posted by joeorc

Tuesday, November 06, 2007
Sony Reports Progress in Holographic Storage

Sony managed to read and write on seven layers on holographic medium using the Micro-reflector method, further improving the company's previous achievements that stored data in 4 layers of a volumetric optical disc.

In the Micro-Reflector recording technology, a laser light emitted from a blue violet semiconductor laser diode is split into two so that one irradiates the front side of a volumetric optical disc medium as a reference light, while the other is emitted to the back side as a recording light. By precisely aligning the focal points of the two laser beams using servo technology, the two counter-propagating light beams focus on the same point on the disc's holographic recording material. Their interference creates a diffraction-limited size fringe corresponding to a 1 bit of information. Changing the focal points results in recording in more layers. During reproduction, light is emitted on the front side of the medium.

However, Micro-Reflector multi-layer recording does not avoid the issues met in multi-layer recording systems in general. The reproduction signal gets weaker as the system tried to read the deeper layers. In addition, a slow data rate is also listed as a problem.

Sony made progress in increasing the data transmission speed, memory density per layer and the number of recording layers. Tech-On publication reports that Sony managed to record data on a volumetric disc spinning at 1050rpm, 15 times faster than the company's previous demonstration, offering an equivalent data transmission of 3Mbps in case of 1-7PP modulated data (already implemented by the Blu-ray Disc).

Storage density was also increased to Gbytes per layer, for a 12cm disc.

Sony said that it calculated the error rates of reproduced signals on a 7-layer medium, with the maximum reported error rate to be 4.1 ? 10-4.

The company made the announcement at ISOM' 07, an international conference on optical memory, which took place Oct 21-25, 2007, in Singapore.

Sony also announced the results of recording and reading data on a 10-layer disc, suggesting promising eye-pattern signals.

Sony aims at the production of a a 500 Gbytes (25 Gbytes x 20 layers) 12cm disc by 2010.

http://www.cdrinfo.com/Sections/News...x?NewsId=21775

500gb, well i hardly doubt we will need more space then lol chould fit my entire movie collection on one disc all with Lossless and superior high bit rates

[w_tanoto]

that is not BD. but 500GB is crazy. Wonder what toshibas is up to or whether they'll be joining force with sony, learning that HD DVD does not do well

[Porfie]

Wow thats amazing 500 Gigs. Wouldnt you need a lot more to store an entire blu-ray movie collection considering some of them are 50 gigs all ready?

[XSilentCobraX]

Originally Posted by Porfie

Wow thats amazing 500 Gigs. Wouldnt you need a lot more to store an entire blu-ray movie collection considering some of them are 50 gigs all ready?

Yeah you whould, i was just messin, either way, 500 gb is alot

[joeorc]

Originally Posted by w_tanoto

that is not BD. but 500GB is crazy. Wonder what toshibas is up to or whether they'll be joining force with sony, learning that HD DVD does not do well

"Sony aims at the production of a a 500 Gbytes (25 Gbytes x 20 layers) 12cm disc by 2010."

Worm Data.....

read closely..it is the next step in the Blu-Ray formats evolution is Holographic Storage....already useing Blue lasers but most other Holographic Storage USES GREEN...

[w_tanoto]

Originally Posted by joeorc

"Sony aims at the production of a a 500 Gbytes (25 Gbytes x 20 layers) 12cm disc by 2010."

Worm Data.....

read closely..it is the next step in the Blu-Ray formats evolution is Holographic Storage....already useing Blue lasers but most other Holographic Storage USES GREEN...

sorry.... confused. is it the same as this:

http://en.wikipedia.org/wiki/Holographic_Versatile_Disc

[joeorc]

Originally Posted by w_tanoto

sorry.... confused. is it the same as this:

http://en.wikipedia.org/wiki/Holographic_Versatile_Disc

Holographic Versatile Disc (HVD) is an optical disc technology which would hold up to 3.9 terabytes (TB) of information. It employs a technique known as collinear holography, whereby two lasers, one red and one green, are collimated in a single beam. The green laser reads data encoded as laser interference fringes from a holographic layer near the top of the disc while the red laser is used as the reference beam and to read servo information from a regular CD-style aluminium layer near the bottom. Servo information is used to monitor the position of the read head over the disc, similar to the head, track, and sector information on a conventional hard disk drive. On a CD or DVD this servo information is interspersed amongst the data.

based on the same IDEA but look at what type of laser they use in HVD....

[WickyWoo]

Don't think they'll be selling this at the consumer level any time in the next decade

They ahve a lot of Blu drives to sell

[Storm]

One word..................WOW!

[sardaukar1977]

Originally Posted by joeorc

Holographic Versatile Disc (HVD) is an optical disc technology which would hold up to 3.9 terabytes (TB) of information. It employs a technique known as collinear holography, whereby two lasers, one red and one green, are collimated in a single beam. The green laser reads data encoded as laser interference fringes from a holographic layer near the top of the disc while the red laser is used as the reference beam and to read servo information from a regular CD-style aluminium layer near the bottom. Servo information is used to monitor the position of the read head over the disc, similar to the head, track, and sector information on a conventional hard disk drive. On a CD or DVD this servo information is interspersed amongst the data.

based on the same IDEA but look at what type of laser they use in HVD....

3.9 terabytes! my computer doesn't even have 1 terabyte, lol.

[radagast]

Originally Posted by joeorc

"Sony aims at the production of a a 500 Gbytes (25 Gbytes x 20 layers) 12cm disc by 2010."

Worm Data.....

read closely..it is the next step in the Blu-Ray formats evolution is Holographic Storage....already useing Blue lasers but most other Holographic Storage USES GREEN...

That doesn't mean it's related to Blu-ray. hd-dud uses blue lasers too, but it's a different format. Same here. Holographic storage is a different technology and format from Blu-ray. You might call it the successor to Blu-ray but it's NOT the next step in Blu-ray evolution.

[joeorc]

Originally Posted by radagast

That doesn't mean it's related to Blu-ray. hd-dud uses blue lasers too, but it's a different format. Same here. Holographic storage is a different technology and format from Blu-ray. You might call it the successor to Blu-ray but it's NOT the next step in Blu-ray evolution.

no it is...look at this:





Colossal Storage Corporation feels rewritable 2D Area MO storage technology is on it's way out do to 2D Area Blu-Ray Violet Laser DVD technology coming online and feels WORM Phase Change Blu-Ray has 5 years before it is on its way out because of 3D Volume Holographic Optical Nanotechnology storage coming online.

Most all Phase Change media uses ferroelectric Ge2Sb2Te5 material. The DVD/CD/MO/Blu-Ray Phase Change companies didn't know the media they were using was ferroelectric but only knew if they heated it up and cooled it down something happened to the surface of the material.

Colossal Storage will be the only drive in the world that will be able to read any phase change disk with the capability of overwriting or infinitely rewriting data to any phase change disk by changing the internal molecular structure of the polarized atom dipole geometry without heat and cooling.

Sony is working on the same dynamic but with useing Blue laser evolution into 3d storage instead of the green/red

[w_tanoto]

too complicated for me to undestand. too many formats in development

[Shadowself]

Originally Posted by joeorc

Tuesday, November 06, 2007
Sony Reports Progress in Holographic Storage

Sony managed to read and write on seven layers on holographic medium using the Micro-reflector method, further improving the company's previous achievements that stored data in 4 layers of a volumetric optical disc.

First this is not the next generation Blu-ray disk no matter how anyone tries to spin this. This is a completely different technology requiring the convergence of two different beams. It is no more the next generation Blu-ray disk than saying that DVD was the next generation VHS.

Also Sony is *way* behind InPhase and others. For example: InPhase is already shipping 300GB drives and disks -- admittedly in very, very small quantities, but they are shipping. Sony won't be shipping anything equivalent until 2009 at the earliest and probably not until 2010. By 2009 InPhase should be shipping their 800 GB disks and drives. They'd like people to believe they will be sampling these disks and drives by the end of calendar year 2008, but if they are actually sampling by mid 2009 and in true shipments by end of calendar year 2009 their customer base won't be too disappointed.

Sony is making great strides in catching up, but I don't expect them to catch up to the other holographic players before 2011 or 2012 at the earliest.

Originally Posted by joeorc

Sony said that it calculated the error rates of reproduced signals on a 7-layer medium, with the maximum reported error rate to be 4.1 ? 10-4.

This is a horrible bit error rate.
Other holographic players are claiming 10^-11 or higher which is what is really needed. If this report's number for the BER of Sony's system is accurate Sony is more than seven orders of magnitude short of what is needed to be accepted in the industry. (InPhase claims 10^-18, but no one really believes them as there is no way to truly verify such an extremely low bit error rate. To verify such a low error rate, you'd have to record a minimum of 5x10^17 bits with without a single error -- over 2 million of InPhase's 300 GB disks. Clearly no one has done this yet.)

Of course "pretty pictures to eye balls" -- as some of us in the extreme fidelity world call such imagery as typical films showing at HDTV kink of resolutions -- can stand worse BERs than data or critical imagery systems but anything less than 10^-6 is generally considered unacceptable even for this use. The information I had been given on Sony's system was almost to that level, but if it is really 4.1x10-4 then they have a long, long way to improve (a factor of 410 better as a minimum).

In general...

Will holographic media replace Blu-ray disks? Yes.

Will it happen in the next 5 years? No.

We'll see 100 GB Blu-ray disks for the CE market long before we see holographic media. We may even see 200 GB Blu-ray disks before that change happens.

[joeorc]

Originally Posted by Shadowself

First this is not the next generation Blu-ray disk no matter how anyone tries to spin this.

Originally Posted by Shadowself

This is a completely different technology requiring the convergence of two different beams. It is no more the next generation Blu-ray disk than saying that DVD was the next generation VHS.

Also Sony is *way* behind InPhase and others. For example: InPhase is already shipping 300GB drives and disks -- admittedly in very, very small quantities, but they are shipping. Sony won't be shipping anything equivalent until 2009 at the earliest and probably not until 2010. By 2009 InPhase should be shipping their 800 GB disks and drives. They'd like people to believe they will be sampling these disks and drives by the end of calendar year 2008, but if they are actually sampling by mid 2009 and in true shipments by end of calendar year 2009 their customer base won't be too disappointed.

Sony is making great strides in catching up, but I don't expect them to catch up to the other holographic players before 2011 or 2012 at the earliest.






This is a horrible bit error rate.
Other holographic players are claiming 10^-11 or higher which is what is really needed. If this report's number for the BER of Sony's system is accurate Sony is more than seven orders of magnitude short of what is needed to be accepted in the industry. (InPhase claims 10^-18, but no one really believes them as there is no way to truly verify such an extremely low bit error rate. To verify such a low error rate, you'd have to record a minimum of 5x10^17 bits with without a single error -- over 2 million of InPhase's 300 GB disks. Clearly no one has done this yet.)

Of course "pretty pictures to eye balls" -- as some of us in the extreme fidelity world call such imagery as typical films showing at HDTV kink of resolutions -- can stand worse BERs than data or critical imagery systems but anything less than 10^-6 is generally considered unacceptable even for this use. The information I had been given on Sony's system was almost to that level, but if it is really 4.1x10-4 then they have a long, long way to improve (a factor of 410 better as a minimum).

In general...

Will holographic media replace Blu-ray disks? Yes.

Will it happen in the next 5 years? No.

We'll see 100 GB Blu-ray disks for the CE market long before we see holographic media. We may even see 200 GB Blu-ray disks before that change happens.

first of all its not spin the fact that Sony is useing BluE LASER DIODES is no qwinky dink... ..because Sony is # 1 Blue laser diode producer in the world so it stand's to reason why they are useing Blue laser diodes. and the same principle of DVD optics still apply the physical drive design is not the same as current players but could read back compatable DVD on up at least in their testing ..and second it is going to take quite some time for them to catch up..such as you said that is no DOUBT about that but make no mistake about this This Sony is starting to develop the Blu-Ray Holographic format.

this is not spin its just BRANCHING THE Blu-Ray format in a new development in OPTICS that is currently in its infancy. HDV is still in a stage of very good technology but expensive and still in multiple stages of advancement in HVD optics

[joeorc]

example:
Sony tests seven-layer holographic disc

Boffins aim for 100x DVD capacity by 2010
Simon Burns in Taipei, vnunet.com 07 Nov 2007
ADVERTISEMENT

Sony has successfully recorded data on a seven-layer holographic disc, researchers announced at a technology conference in Singapore.

The company is planning to develop a 20-layer 500GB recordable holographic disc, more than 100 times the capacity of a standard DVD, by 2010, according to Japan's Nikkei Business Publications.

Sony's researchers had previously achieved successful recording only with four-layer and five-layer discs.

Increasing the storage capacity became increasingly difficult because the recording laser could not penetrate the upper layers of data with sufficient power to change the state of lower layers. The layers are approximately 200 micrometres thick.

Sony scientists said at the International Symposium on Optical Memory in Singapore that they have overcome this problem by further development of a system with two read heads, one on each side of the disc.

Instead of directly altering the recording layers, the twin layers generate interference patterns which are used to write the data.

Sony researchers believe that refinements to this technique will enable them to move beyond seven-layer discs to densities of up to 20 layers.

The prototype discs use standard blue-violet lasers which are focused at different depths by lenses. The system uses a separate red laser to track the recording and reading position.

The tests used an 8cm disc rotating at 1,050rpm, but Sony believes that the technology can be scaled up to work with standard 12cm discs and faster rotational speeds.

http://www.vnunet.com/vnunet/news/22...ts-seven-layer

Blu-Ray extended format advancement

http://www.sresearch.com/articles/SR...D_20070911.pdf