The 7th Data Storage Expo & Conference, currently being held in Tokyo, Japan, where TDK demonstrated its four layer Blu-Ray Recordable disk (BD-R), capable of holding up to 100GB of content.
The disk features the DURABIS 2 hard-coating technology from TDK, in order to physically protect a Blu-Ray disc's surface from scratches, dust and other factors that could cause damage.
The Blu-ray Disc Assosiacion has not yet started the standardization procedures for this kind of media, and according to TDK, the four-layer BD-R disc is currently a research level prototype. TDK held a BD-R recording test, using a Pioneer BD-R/RE prototype recorder. The TDK disc was recorded at 2x, which translates to 72Mbps transfer rate.
Single layer (25GB) and dual layer (50GB) BD-R and BD media were also available at the TDK booth, featuring the DURABIS 2 coating technology.
With the TDK booth of data storage EXPO, the BD-R disk of 4 layer is displayed. "DURABIS" of the hard coat technology for DVD and Blu-ray Disc of the same company and also, height of the expandability of Blu-ray is appealed.
In regard to 4 layers BD-R, the standardization job and the like with of Blu-ray Disc Assosiacion has not started, is not final product specification, but "4 layer disk being able to actualize with research level is," that you say. Transfer rate actualizes 72Mbps of 2 time speed.
In addition, BD-R/RE of 1 layer /25GB, it exhibits also the BD-R/RE disk of 2 layers 50GB together, depends on DURABIS 2 coat, appealing the tolerance to the fingerprint soiling and the scratch. The bear disk of the pioneer make (the cartridge is not the disk) also correspondence BD-R/RE drive being referred and being exhibited.
BD-R disk of 4 layers /100GB
The BD-R/RE disk which it is referred is exhibited
BD-R/RE drive of pioneer
The Blu-ray Disc road map of TDK
This is a very interesting road map that is certainly very promising. I'd love to see a TB disc and I am sure it could be used in many applications particularly video
I'd love to see a TB disc and I am sure it could be used in many applications particularly video
Maybe in raw video...
But 1 TB BD disc would have 40 layers...
I dont think thats in reach for the Blu-ray Disc, or is it?
And the discs sure look beautiful...
So does the burner.... *Oh I want that!*
Regards,
TH
They could expand the recording pits and thus data density, not necessarily layers, to expand the recording capacity of layers. Somehow I think 25GB is just the beginning and the safest number at the beginning. But if you look at the various recording tecnologies that are evolving particularly with hard discs , I get the sense it's just a beginning. Two links that caught my eye recently Fujitsu pushes limits of data-storage technology HDD Recording Density to Reach 500 Gbits/inch2
At present is carrying on Blu-ray Disc (BD) and HD in DVD form war, a BD side capacity design for one-sided single-layer 23.3GB/25GB/27GB, but by 25GB primarily. However, in recent time to BD correlation public figure's interview in, then disclosed the single-layer capacity hopes to achieve a 30GB even higher capacity.
Accepts the interview is, the Sony Corporation home use electron develops this optical system development department vice-minister the small 林博 department in, grows up with the optical system development department is clean. The interview topic from the BD-R/RE compact disc cost start, the BD-R/RE production cost high question which early proposed in view of Toshiba, two participants expressed this possibly is because the BDA interior discussion result is not known by the person the misunderstanding which creates. In changes the material as well as the organic dye aspect, BD-R/RE completely has the low cost production the possibility.
Because a BD side development route is starts from BD-RE, finally is BD-ROM, therefore in the index of reflection aspect, BD-R/RE will face a higher challenge. This is different with DVD and the HD DVD development route, they all first develop the ROM compact disc, then develops the -R/RW compact disc. Therefore may better achieving with the ROM compact disc compatibility. Therefore, when produces BD-RE must consider this point.
At present the BD-RE index of reflection for the monolayer 12-24%, double-decked is 4-8%, but in order to obtain a higher index of reflection also to use the more advanced metallic reflection thin film, but Sony expressed this certainly was not equal to expensively, the new metallic reflection thin film still may the inexpensive production.
In the BD-R aspect, at present put with emphasis on the single-layer product aspect, this first stems from the cost consideration, because double-decked BD-R had to consider the level the spatial precision question, at present does not have regarding double-decked BD-R explicitly to go into production the date plan, the small 林博 department expressed first achieved the single-layer product stably. As for BD-RE also basically based on this mentality, although the pine inferior company already started the batch to provide double-decked 50GB the BD-RE compact disc.
Moreover, in the BD compact disc capacity aspect, the small 林博 department expressed the present BDA main force merchant all has is higher than the existing standard the capacity design proposal, for instance 30, 33, 35GB and so on, development merchant besides Sony, but also includes the cutting edge, Matushita, Tristar and Phillips, at present these companies basic all have own 35GB design proposal. But, had not at present decided whether carries on the expansion to the BD compact disc monolayer capacity. Under the present technical level, achieves the 30GB no question, achieves 33GB and 35GB has the certain challenge.
The small 林博 department stressed that, the BDA attention will be next year the FIFA World Cup which will hold in Germany with 2008 Olympic Games, and will formulate the BD-ROM correlation product by this to go on the market the program, but at present has not expanded to the 30GB plan, mainly or product compatible consideration. But stemming from the consideration which one-sided double-decked compact disc (capacity 30GB) competes with HD the DVD, has the possibility to be able very much to enhance the BD single-layer capacity 30GB, obviously its market significance far is bigger than the technical significance.
"Memory Time" comments: While has not gone on the market time early begins
Any product all had around the compatible question, the DVD compact disc had achieved at the beginning of the development the 5GB capacity, afterwards falls present 4.7GB, from this time on also again has not vacillated. This is because the industry needs to consider the DVD equipment the continuous nature, the consumer has bought this kind of product, the hope is with for a lifetime, at least withdraws from in front of the market in this product all may use. We had not seen in 2004 promotes the VHS video tape cannot the situation which uses in on the 80's VHS videorecorders, but the existing DVD compact disc cannot the situation which broadcasts in on the early video compact disk machine certainly not be also common, this is the product around compatible question, the outstanding around compatibility will be helpful to the product popularization with continues.
Therefore, this need designer goes on the market in the product considers as far as possible completely, in order to avoid causes consumer's investment losses. BDA at present has enhances the BD monolayer recording capacity the ability, future also very much will have the possibility such to do, that earlier will do, in order to avoid will waste the initial period BD supporter's money. Nobody is willing after buys a BD equipment in a while, discovered also has the new compact disc appearance, but cannot support. Therefore, if must promote the BD specification, is more early better. The similar suggestion also is suitable for HD DVD, double-decked HD DVD-R/RW and one-sided three HD DVD-ROM also should form the standard as soon as possible, lets the product go on the market the time around compatibility to be better.
Toshiba is most early promotes uses (demonstration which 405nm the blue color laser the one-sided single-layer 30GB compact disc system sample merchant in January, 2002 carries on), now actually becomes this technical standard the match
Finally also wants to raise, most early the grand demonstration one-sided monolayer 30GB compact disc system certainly is not in the present BDA member, but is the HD DVD inventor Toshiba company. Now already was the person non-, really sighed the person.
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TDK showcases 100GB BD
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