High Capacity Blu-ray Disc-ROM Mastering System

August 30, 2004
Blu-Ray Disc

Sony today announced the successful development of the Blu-ray Disc ROM (BD-ROM) mastering system for Blu-ray Disc pre-recorded content. Key benefits of this new system include low cost operation, increased reliability and compact size. The PTR-3000 system uses a blue laser heat chemical reaction based on Phase Transition Mastering (PTM) technologies, and requires less than half of the processes and only 1/5 the space of a conventional DVD mastering system. In addition to the mastering of BD-ROM discs, it enables the mastering of conventional DVD-ROM discs in one system. The PTR-3000 mastering system will be available starting this fall.

With this PTM technology-based mastering system, Sony and Sony Disc Technology Inc. actively supports the implementation of the BD-ROM format for high capacity and high definition video content.

Sony plans to create a total mass production BD-ROM test line, including PTR-3000 and BD-ROM disc replication line, in Terre Haute, Indiana, USA. This line will operate in tandem with the existing Sony Disc Technology Inc. Shizuoka technology center in Japan.
Since larger capacity optical discs require the pit to be smaller on the disc, current DVD mastering technology was not compatible for use in next generation optical discs.

PTM technology uses a special inorganic resist which is comprised of metal oxide. It utilizes a chemical heat reaction generated from the changing phase of amorphous to crystal, instead of photo resist, in the fine pitch recording of electron beam or deep UV laser. This laser uses 405nm wavelength consumer blue laser to make the smaller pit.

PTR-3000 consists of 3 simple units: Sputtering, Cutting and Developing. In the manufacturing process, instead of a glass substrate and photo resist, the system uses a silicon wafer and inorganic resist that eliminates the pre-process and conductivity process. As a result, it became possible to directly duplicate the stumper. Therefore, the PTM process and current master galvanizing process combined reduce the mastering processes from 11 to 5 process steps.

Source: Sony

Explore further: An entertaining holiday gift guide for techies

Related Stories

Sony Hits Sweet 16X With New DVD Burners

August 23, 2004

Now Available, Sony's Seventh-Generation DVD Burners Boast Six-Minute Burn Time Sony Electronics is upping the ante for DVD recording with its second generation of DVD+R Double Layer (DL) burners that support 16X DVD+R ...

Sony uses movie studio to press ultra-HD advantage

January 8, 2013

Sony Corp. is finally pressing its advantage as a conglomerate that owns both high-tech gadgets and the content that plays on them by being the only electronics maker to offer ultra-HD TVs—and a way to get movies to the ...

Recommended for you

Egyptian mummies virtually unwrapped in Australia

December 8, 2016

The hidden secrets of Egyptian mummies up to 3,000 years old have been virtually unwrapped and reconstructed for the first time using cutting-edge scanning technology in a joint British-Australian exhibition.

Dark matter may be smoother than expected

December 7, 2016

Analysis of a giant new galaxy survey, made with ESO's VLT Survey Telescope in Chile, suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought. An international team ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.