It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
Pioneer intros 16-Layer 400Gb Blu-ray Disc Pioneer intros 16-Layer 400Gb Blu-ray Disc
FAQ Members List Calendar Search Today's Posts Mark Forums Read


Pioneer intros 16-Layer 400Gb Blu-ray Disc
Reply
 
Thread Tools
Old 7th July 2008, 13:26   #1
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,020
jmke has disabled reputation
Icon17 Pioneer intros 16-Layer 400Gb Blu-ray Disc

Pioneer Succeeds in Developing World's First 16-Layer Optical Disc
-Big Step toward Future Large-Capacity Archive System-


July 7, 2008, Tokyo, Japan - Pioneer Corporation has succeeded in developing a 16-layer read-only optical disc with a capacity of 400 gigabytes for the first time in the world[FONT="Garamond"]*1[/FONT]. Its per-layer capacity is 25 gigabytes, which is the same as that of a Blu-ray Disc (BD). This multilayer technology will also be applicable to multilayer recordable discs. This development has bolstered Pioneer's confidence in the feasibility of a large-capacity optical disc, which is expected to become necessary in the near future.


For multilayer optical discs, it has been difficult to obtain clear signals from each recording layer in a stable manner due to crosstalk from adjacent layers and transmission loss. Utilizing the optical disc production technology that it has developed in the DVD field, Pioneer solved these problems by, among other things, using a disc structure that can reduce crosstalk from adjacent layers, resulting in a 16-layer optical disc that can playback high-quality signals from every layer.

As for the read-out system, Pioneer achieved stability in the playback of recorded signals by employing a wide-range spherical aberration compensator and light-receiving element that can read out weak signals at a high signal-to-noise ratio in the optical pick-up mechanism. Since the optical specifications of the objective lens, such as NA (Numerical Aperture)[FONT="Garamond"]*2[/FONT], are the same as those for the existing BD discs, it is possible to maintain compatibility between the new 16-layer optical disc and the BD discs.

The 16-layer optical disc technology, capable of storing much more data than the conventional discs on one disc, will greatly reduce the number of discs to be used and therefore contribute to the conservation of resources.

Pioneer will present the details of this research at the International Symposium on Optical Memory and Optical Data Storage 2008 (ISOM/ODS2008) to be held in Hawaii from July 13.

source: http://pioneer.jp/press/release193.html

Notes
*1: According to Pioneer survey, as of July 7, 2008.
*2: NA: The higher numerical aperture of the objective lens, the smaller diameter of the beam spot focused on a disc surface.
__________________
jmke is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
SRock ION330HT-BD Blu Ray HTPC Review jmke WebNews 0 22nd February 2010 13:38
3D Blue Ray Disc Camcorder by Nikola Knezevic jmke WebNews 0 21st May 2009 10:47
Plextor PX-B310SA Blu Ray drive jmke WebNews 0 23rd February 2009 20:15
Pioneer Has 400GB Blu-ray Disc jmke WebNews 0 2nd December 2008 19:13
Pioneer Blu Ray / DVDRW (BDC-202BK) Review jmke WebNews 0 13th October 2008 19:51

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


All times are GMT +1. The time now is 04:50.


Powered by vBulletin® - Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO