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!

[Maxell]

Super Blu-Ray?!!!

[joeorc]

Originally Posted by 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

yea its mainly going in the PC industry for DATA back up.thats for sure..but still it does show Sony's looking to expand the Blu-Ray format forward.

[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.

[frenchglen]

Originally Posted by joeorc

yea its mainly going in the PC industry for DATA back up.thats for sure..but still it does show Sony's looking to expand the Blu-Ray format forward.

C'mon, everyone always says that, but then it ends up being filled up with the next-gen level of audio/video! Audio has reached it's limit, we can't go any further (2 hours of 24-bit 96KHz 7.Ch uncompressed PCM is 16.5GB) but video has a LONG way to go and can easily get into the Terabytes...higher resolution, less compression, etc.

[joeorc]

Originally Posted by frenchglen

C'mon, everyone always says that, but then it ends up being filled up with the next-gen level of audio/video! Audio has reached it's limit, we can't go any further (2 hours of 24-bit 96KHz 7.Ch uncompressed PCM is 16.5GB) but video has a LONG way to go and can easily get into the Terabytes...higher resolution, less compression, etc.

yes they can but the content creators will charge a premium..which we see the effects of that right now thats the problem with Both Blu-Ray and HD DVD the price of the content for the average J6P off the street..they on average will not buy content at $25.00+ per disc..unless its a software PC game or a Blu-Ray PC/PLAYSTATION 3 game..the value for the content is up to each person, no doubt..but also even with the better resolution,even with more content the Value of a Movie is in the EYE of beholder..and J6P just views that in MY OPINION is too much..now add a full PC/PLAYSTATION 3 game to the DISC and people may see it as a better VALUE

[scook]

This is a very interesting thread good find.

[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.

[Kirsty_Mc]

Next generation technology I think... probably quite a few years away.

or...

... A possible way out of the damaging format war. No doubt next time the industry (if it has any sense at all) will want to avoid the current debacle. Maybe this will roll out earlier than expected and the "Super HD" format (or whatever they call it) will be backwards compatible with Blu-ray and possibly thew somewhat unsophisticated format.

[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