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View Full Version : Woot! 27gig disk standards!


Keganator
19th Feb 2002, 12:38 PM
http://www.matsu****a.co.jp/corp/news/official.data/data.dir/en020219-4/en020219-4.html


Tokyo Japan, February 19, 2002: Nine leading companies today announced that they have jointly established the basic specifications for a next generation large capacity optical disc video recording format called "Blu-ray Disc". The Blu-ray Disc enables the recording, rewriting and play back of up to 27 gigabytes (GB) of data on a single sided single layer 12cm CD/DVD size disc using a 405nm blue-violet laser. The companies that established the basic specifications for the Blu-ray Disc are: Hitachi Ltd., LG Electronics Inc., Matsu****a Electric Industrial Co., Ltd., Pioneer Corporation, Royal Philips Electronics, Samsung Electronics Co. Ltd., Sharp Corporation, Sony Corporation, and Thomson Multimedia.
In addition to actively promoting the new format throughout the Industry, the nine companies listed above plan to begin licensing the new format as soon as specifications are completed. Licensing is expected to start around spring 2002.

By employing a short wavelength blue violet laser, the Blu-ray Disc successfully minimizes its beam spot size by making the numerical aperture (NA) on a field lens that converges the laser 0.85. In addition, by using a disc structure with a 0.1mm optical transmittance protection layer, the Blu-ray Disc diminishes aberration caused by disc tilt. This also allows for disc better readout and an increased recording density. The Blu-ray Disc's tracking pitch is reduced to 0.32um, almost half of that of a regular DVD, achieving up to 27 GB high-density recording on a single sided disc.
Because the Blu-ray Disc utilizes global standard "MPEG-2 Transport Stream" compression technology highly compatible with digital broadcasting for video recording, a wide range of content can be recorded. It is possible for the Blu-ray Disc to record digital high definition broadcasting while maintaining high quality and other data simultaneously with video data if they are received together. In addition, the adoption of a unique ID written on a Blu-ray Disc realizes high quality copyright protection functions.

The Blu-ray Disc is a technology platform that can store sound and video while maintaining high quality and also access the stored content in an easy-to-use way. This will be important in the coming broadband era as content distribution becomes increasingly diversified. The nine companies involved in the announcement will respectively develop products that take full advantage of Blu-ray Disc's large capacity and high-speed data transfer rate. They are also aiming to further enhance the appeal of the new format through developing a larger capacity, such as over 30GB on a single sided single layer disc and over 50GB on a single sided double layer disc. Adoption of the Blu-ray Disc in a variety of applications including PC data storage and high definition video software is being considered.


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"Blu-ray Disc" Key Characteristics
1) Large recording capacity up to 27GB:
By adopting a 405nm blue-violet semiconductor laser, with a 0.85NA field lens and a 0.1mm optical transmittance protection disc layer structure, it can record up to 27GB video data on a single sided 12cm phase change disc. It can record over 2 hours of digital high definition video and more than 13 hours of standard TV broadcasting (VHS/standard definition picture quality, 3.8Mbps)


2) High-speed data transfer rate 36Mbps:
It is possible for the Blu-ray Disc to record digital high definition broadcasts or high definition images from a digital video camera while maintaining the original picture quality. In addition, by fully utilizing an optical disc's random accessing functions, it is possible to easily edit video data captured on a video camera or play back pre-recorded video on the disc while simultaneously recording images being broadcast on TV.


3) Easy to use disc cartridge:
An easy to use optical disc cartridge protects the optical disc's recording and playback phase from dust and fingerprints.
Main Specifications
Recording capacity: 23.3GB/25GB/27GB
Laser wavelength: 405nm (blue-violet laser)
Lens numerical aperture (NA): 0.85
Data transfer rate: 36Mbps
Disc diameter: 120mm
Disc thickness: 1.2mm (optical transmittance protection layer: 0.1mm)
Recording format: Phase change recording
Tracking format: Groove recording
Tracking pitch: 0.32um
Shortest pit length: 0.160/0.149/0.138um
Recording phase density: 16.8/18.0/19.5Gbit/inch2
Video recording format: MPEG2 video
Audio recording format: AC3, MPEG1, Layer2, etc.
Video and audio multiplexing format: MPEG2 transport stream
Cartridge dimension: Approximately 129 x 131 x 7mm


I'm happy! Finally, the squabble ends. Maybe NOW we can start to see the standardization of DVD burners in every home computer.

Midwinter
19th Feb 2002, 12:43 PM
hmmmmm? you can't say Matsu****a? damn automatic censor... :o

Eliwar
19th Feb 2002, 12:52 PM
Umm... Matsufu<b></b>cka
or is it Matsush<b></b>ita or Matsucu<b></b>nta

Life has been turned upside down by the censors. I have no idea on how japanese comapanies are spelt any more :(

The_Fur
19th Feb 2002, 02:17 PM
out of that entire lineup not one produces quality products, ah well i guess if enough idiots buy there products a good company will start building em as well.

Gholam
19th Feb 2002, 02:25 PM
And then there's the fluorescent storage technology looming on the horizon...

shadowkil
19th Feb 2002, 03:14 PM
Originally posted by Midwinter
hmmmmm? you can't say Matsu****a? damn automatic censor... :o

Then just say Panasonic =b

I'm definitely excited about this announcement, and glad I didn't already buy the DVDA03 I was eying ;)

MadWoffen
20th Feb 2002, 04:02 AM
Price ? :p

A_Rimmerlister
20th Feb 2002, 05:48 AM
Originally posted by MadWoffen
Price ? :p
If you've got to ask, then you can't afford it anyway :p

What's so wrong with Philips-products ? They did invent the CD after all ...

Excelsiore
20th Feb 2002, 06:16 AM
In addition, the adoption of a unique ID written on a Blu-ray Disc realizes high quality copyright protection functions.


Here we go again. Maybe it will take a 16 year old to write a DeCSS proggie this time.

MadWoffen
20th Feb 2002, 07:18 AM
Originally posted by A_Rimmerlister

If you've got to ask, then you can't afford it anyway :p

What's so wrong with Philips-products ? They did invent the CD after all ...



To afford it is not a problem. The problem is to given an account justification if a fiscal inspector asks about his use... :D


Philips ? They invent... then others ameliorate the product and then others sell it cheaper... :D

A_Rimmerlister
20th Feb 2002, 07:23 AM
Originally posted by MadWoffen




To afford it is not a problem. The problem is to given an account justification if a fiscal inspector asks about his use... :D


Philips ? They invent... then others ameliorate the product and then others sell it cheaper... :D
ameliorate-wattes ? that be french or something ?

Kibbles-N-Bits
20th Feb 2002, 07:26 AM
Originally posted by Excelsiore


Here we go again. Maybe it will take a 16 year old to write a DeCSS proggie this time.

Nah, two college students and a CSS-decomp prog, some coffee, and a few all nighters. I love the new CD's with 'copy protection' against ripping. I figured out that all I have to do is put it in my DVD drive and rip the songs off... wait... I did that with regular CDs too... hmmm. :rolleyes:

MadWoffen
20th Feb 2002, 07:29 AM
to ameliorate = to improve


and it's english dude! :p


http://www.dictionary.com/search?q=ameliorate

Kibbles-N-Bits
20th Feb 2002, 07:29 AM
MadWoffen, uh... does ameliorate = emulate?

http://64.124.221.208/0/_private/bbs_images/08.jpg

MadWoffen
20th Feb 2002, 07:32 AM
:con: What ? Is this verb not used anymore ?




``In every human being there is a wish to ameliorate his own condition.''
--Macaulay, History of England from the Accession of James the Second

``Wine ameliorates by age.''

``The state of things is rapidly ameliorating.''

``The imagination is the distinguishing characteristic of man as a progressive being; and I repeat that it ought to be carefully guided and strengthened as the indispensible means and instrument of continued amelioration and refinement.''
--Samuel Taylor Coleridge, ``The Education of Children''

A_Rimmerlister
20th Feb 2002, 07:36 AM
That word is sooo last century ... hell it even predates the current millenium ;)
=> "ameliorate was Word of the Day on July 16, 1999" ...

and the source can't be trusted either :
"The American Heritage® Dictionary of the English Language, Fourth Edition" ...

Gryphon
20th Feb 2002, 07:53 AM
...using a 405nm blue-violet laser.Do you people have ANY idea how much a violet laser diode costs? I saw a company that had just created one selling samples for around $3,500 recently.

Kibbles-N-Bits
20th Feb 2002, 07:57 AM
So you're saying that Bill Gates will be using 27 GB cdrw's... Ah, I get it. :p

MadWoffen
20th Feb 2002, 08:12 AM
Originally posted by A_Rimmerlister
That word is sooo last century ... hell it even predates the current millenium ;)
=> "ameliorate was Word of the Day on July 16, 1999" ...

and the source can't be trusted either :
"The American Heritage® Dictionary of the English Language, Fourth Edition" ...

:stick:

/me takes my cane and beat the s<b></b>hit out of yours heads.

Shaddap youngs, degenerated punks! :p

A_Rimmerlister
20th Feb 2002, 08:16 AM
/me looks at MadWoffen's birthdate ...
Sure kid ... have fun with your sugarcane ;)

MadWoffen
20th Feb 2002, 09:03 AM
Lol, I thought you were a bit younger than me, dunno why... :D


Anyway, I checked my dictionnary and the verb is still in it. Hey, not my fault if I revive a bit some dusty vocabulary! :p

Back to topic:

@Gryph: 3500 $ isn't that expensive for a sample/prototype! 2 years ago I sold a stupid mechanical piece (a v-clamp made on measure) sample/prototype for +/- 2800 € to a customer. The cost was mainly due to tool investment. In fact, I found this 3500 tag very low for a prototype. This price should fall sharper with an industrial production.

A_Rimmerlister
20th Feb 2002, 09:15 AM
CD-rewriters used to be pretty expensive too ... now they're practically giving them away ...
It will take a few years ... but at least their is only one standard.

&quot;Sp!ke&quot;
20th Feb 2002, 09:48 AM
Phillips didnt invent the CD on their own, it was a partnership between them and Sony.

A_Rimmerlister
20th Feb 2002, 11:36 AM
Origin of the CD :
http://www.research.philips.com/pressmedia/background/optrec/index.html

They *did* invent it on their own :
http://www.research.philips.com/pressmedia/background/optrec/collson.html

but they finished it together ... (happy now ? ;))

&quot;Sp!ke&quot;
20th Feb 2002, 11:46 AM
Yeah, kinda..;)