Saturday, October 25, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Panasonic to Offload Sanyo's North America TV Business
Google's Pichai to Become Head of Product at Google: report
Internet Explorer 11 Toolkit Allows Enterprise Admins "Spy" On Their Employees
FCC Says Airwave Auction To Delay Until 2016
HP Broadens Moonshot Portfolio With Intel-powered Models
Microsoft To Keep Nokia Brand For Low-end Smartphones
LG Introduces Its First Octa-Core Application Processor
Cloud and Surface 3 Drive Microsoft's Revenue
Active Discussions
Copied dvd's say blank in computer only
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
 Home > News > Optical Storage > Toshiba...
Last 7 Days News : SU MO TU WE TH FR SA All News

Thursday, May 15, 2003
Toshiba's new Dual-layer, single-sided, Blue-Laser Rewritable Optical Disk needs only current production facilities


Tokyo-Toshiba Corporation today announced that it has developed a working prototype of a high capacity dual-layer, single-sided, blue-laser rewritable optical disk. The new disk enjoys key advantages in that it can easily be brought to mass production with only minimal adjustments to current DVD production facilities, and that its current capacity can be increased significantly. The new disk is also expected to promote lower production costs for next generation optical disks, while offering simple implementation of backward compatibility with today's generation of DVD formats.

Details of the new disk and its technology will be presented at Optical Data Storage 2003, to be held from May 11 to 14 at the Hyatt Regency of Vancouver, BC Canada.

The market is starting to move toward next generation DVD format compatible with high definition TVs and the ever-increasing capacity of broadband networks. The DVD Forum, the 215-company strong international association of hardware manufacturers and content providers, is taking the lead in defining such formats.

In August 2002, Toshiba and NEC jointly proposed to the Forum a format for a next generation high-definition system based on a high-capacity, blue-laser DVD. This is now under discussion. That format covers a 15GB single-layer, single-sided read-only disk, a 30GB dual-layer, single-sided, read-only disk, and a 20GB single-layer, single-sided read-and-write disk. These capacities significantly improve on the 8.5GB capacity of current dual-layer, single-sided read-only DVD disks and 4.7GB single-layer, single- sided read-and-write DVD disks.

The proposed format utilizes a short wavelength blue laser and the same disk structure used in current DVDs-back-to-back bonding of two 0.6mm thick, 120mm disks. This approach not only supports continued use of today's DVD disk manufacturing equipment, it also delivers higher production yields than alternative disk structures based on stacked disks. Toshiba-NEC format also employs an objective lens with a numerical aperture of 0.65, very close to that of current DVD.

Since proposing the format, Toshiba has continued development work and has now achieved and demonstrated the practicality of a high capacity 36GB dual-layer, single-sided read-and-write disk that can be applied to both consumer electronic and computer applications.

Toshiba's new high-capacity dual layer disk employs Germanium-Tellurium-rich Germanium-Antimony-Tellurium-Bismuth (GeSbTeBi) alloy recording layers that support improved signal processing and erasability. The disk's dual-layer structure has a high level of manufacturability and a capacity that can be pushed to higher levels.

In summing up the advantages of the new disk, Toshiba noted pluses in the manufacturing process from maximizing similarities with current DVD. The working prototype allows use of the same manufacturing infrastructure as current DVD, supporting manufacturers' by limiting the need for new investments, while also minimizing disk production costs and delivering high yields. The new disk also assures backward compatibility with current CDs and DVDs, and supports fabrication of disks that do not need a cartridge-an essential feature for slim drives that can be integrated into portable equipment.

Toshiba will present the disk technology at Optical Data Storage 2003 at 9:45 on May 13. The company will propose the dual-layer format to the DVD Forum in the latter half of this year.


Previous
Next
SARS to influence the CD media demand        All News        SARS to influence the CD media demand
SARS to influence the CD media demand     Optical Storage News      SARS to influence the CD media demand

Get RSS feed Easy Print E-Mail this Message

Related News
Toshiba Debuts New 2-in-1 Convertible PC with a 360-Degree Design
Toshiba Develops Lifelike Communication Android, Smart Glasses
New Toshiba Tecra C50 Laptop Delivers Security at Affordable Price
Toshiba to Develop New Transistor Series Using Latest Process Technology
Toshiba to Restructure Its PC Business
Toshiba 2014 4K UHD Models Now Available
Toshiba and SanDisk Celebrate the Opening of the Second Phase of Fab 5 and Start Construction of New Fab 2 Semiconductor Fabrication Facility
Toshiba Achieves world's Highest Rate of Quantum Encryption Key Data Distribution
Logitech Unveils Keyboard Designed For Your Computer, Smartphone and Tablet
Toshiba at IFA 2014
Toshiba Responds To Samsung, Introduces 3-Bit SSD
Toshiba's New Wearable Wristband Fitness Tracker Runs Two Weeks without Recharging

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .