Translate the following paragraph into Chinese: 翻译下面的段落译成中文

Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to

supersede the DVD format. The disc diameter is 120 mm and disc thickness 1.2 mm plastic optical disc, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB (23.31 GiB) per layer, with dual layer discs (50 GB) being the norm for feature-length video discs. Triple layer discs (100 GB) and quadruple layers (128 GB) are available for BD-XL Blu-ray re-writer drives. Currently movie production companies have not utilized the triple or quadruple layer discs; most consumer owned Blu-ray players will not be able to read the additional layers, while newer Blu-ray players may require a firmware update to play the triple and quadruple sized discs.

The first Blu-ray Disc prototypes were unveiled in October 2000, and the first prototype player was released in April 2003 in Japan. Afterwards, it continued to be developed until its official release in June 2006.

The name Blu-ray Disc refers to the blue laser used to read the disc, which allows

information to be stored at a greater density than is possible with the longer-wavelength red laser used for DVDs.

Blu-ray Disc was developed by the Blu-ray Disc Association, a group representing makers of consumer electronics, computer hardware, and motion pictures. As of June 2009, more than 1,500 Blu-ray Disc titles were available in Australia and the United Kingdom, with 2,500 in the United States and Canada. In Japan, as of July 2010, more than 3,300 titles have been released.

During the high definition optical disc format war, Blu-ray Disc competed with the HD DVD format. Toshiba, the main company that supported HD DVD, conceded in February 2008, releasing their own Blu-ray Disc player in late 2009.

蓝光光盘(官方简称BD)是一个光盘存储介质的设计来取代DVD格式。阀瓣和阀瓣的直径为120毫米厚1.2毫米塑料光盘,dvd和cd一样大小。蓝光光盘包含25 GB)每一层(23.31导板,双层阀瓣(50 GB)在长篇的标准视频影碟。三层)和阀瓣(100 GB四层(128 GB)可BD-XL蓝光re-writer驱动器。 电影制作公司目前没有运用三联或四层盘,大多数消费者拥有蓝光播放器不能能够阅读添加额外的层,而蓝光球员需要更新固件更新打三、四倍大小的光盘。