From Wikipedia, the free encyclopedia

Although the Blu-ray Disc specification has been finalized, engineers continue to work on advancing the technology. Quad-layer (100 GB) discs have been demonstrated on a drive with modified optics (TDK version) and standard unaltered optics ("Hitachi used a standard drive.").[94][95] Hitachi stated that such a disc could be used to store 7 hours of 32 Mbit/s video (HDTV) or 3.5 hours of 64 Mbit/s video (Cinema 4K). In August 2006, TDK announced that they have created a working experimental Blu-ray Disc capable of holding 200 GB of data on a single side, using six 33 GB data layers.[96]

Also, behind closed doors at CES 2007, Ritek revealed that they had successfully developed a High Definition optical disc process that extends the disc capacity to ten layers, which increases the capacity of the discs to 250 GB. However, they noted that the major obstacle is that current read/write technology does not support the additional layers.[97]

JVC has developed a three-layer technology that allows putting both standard-definition DVD data and HD data on a BD/(standard) DVD combination. If successfully commercialized, this would enable the consumer to purchase a disc that can be played on current DVD players and can also reveal its HD version when played on a BD player.[98] Japanese optical disc manufacturer Infinity announced the first "hybrid" Blu-ray Disc/(standard) DVD combo, to be released February 18, 2009. "Code Blue" will feature four hybrid discs containing a single Blu-ray Disc layer (25GB) and two standard DVD layers (9 GB) on the same side of the disc.[99]

In January 2007, Hitachi showcased a 100 GB Blu-ray Disc, consisting of four layers containing 25 GB each.[100] Unlike TDK and Panasonics 100 GB discs, they claim this disc is readable on standard Blu-ray Disc drives that are currently in circulation, and it is believed that a firmware update is the only requirement to make it readable to current players and drives.[101]

In December 2008, Pioneer Corporation unveiled a 400 GB Blu-ray Disc (containing 16 data layers, 25 GB each) that will be compatible with current players after a firmware update. Its planned launch is in the 200910 time frame for ROM and 201013 for rewritable discs. Ongoing development is under way to create a 1 TB Blu-ray Disc as soon as 2013.[102]

At CES 2009, Panasonic unveiled the DMP-B15, the first portable Blu-ray Disc player, and Sharp introduced the LC-BD60U and LC-BD80U series, the first LCD HDTVs with integrated Blu-ray Disc players. Sharp has also announced that they will sell HDTVs with integrated Blu-ray Disc recorders in the United States by the end of 2009.

As of April 2008[update], a joint licensing agreement for Blu-ray Disc has not yet been finalized.[103] A joint licensing agreement would make it easier for companies to get a license for Blu-ray Disc without having to go to each individual company that owns a Blu-ray Disc patent. For this reason, a joint licensing agreement was eventually made for DVD by the DVD6C Licensing Agency.[104]

Blu-ray Disc (BD) Live is a term applied to the Internet-based interactive features and functions that can be enabled on a Blu-ray Player and displayed and controlled via BD user interface. This interactive functionality is supported by "Profile 2" BD Players and enabled by Blu-ray Discs authored with the appropriate code that "calls back" to a network side server. This technology enables content and service providers to offer value-added interactive features that are usually download or cached locally to the Blu-ray player and can be viewed later through a special menu.

The Blu-ray Disc Association (BDA) has created a task force made up of executives from the film industry and the consumer electronics and IT sectors to help define standards for putting 3D television content on a Blu-ray Disc.[105]


Sponsored Links