Sony Electronics, Inc. announced the launch & shipping of its 25GB single media, single layer Blu-ray Discs with its AccuCORE technology. In addition, a dual layer50GB capacity disc is set to debut in June.Sony is now the second of two companies offering Blu-ray media in the write-once form with TDK being the first(Launch in Early April).


Sony's Offering:
Sony Electronics' version of the single layer Blu-ray media has Sony's AccuCORE technology, which was first integrated into recordable DVD media over a year ago, has been re-engineered for Blu-ray Discs to deliver enhanced reliability and durability. Its major benefits include the following:

* Scratch Guard - hard coating that resists scratches, dust and static;
* Archival Reliability - special material design that prevents data and image corruption and deterioration to ensure quality playback;
* Stable Writing - a uniform and precise cover layer that reduces fluctuation as the disc spins
* Temperature Durability - a high-precision disc structure helps prevent warping during severe changes in temperature and humidity.

Write Speed:
Currently the media is rated at 2X and will provide data transfer rates of up to 72Mb/sec,making it suitable for high-definition video recording and data storage applications.

In addition to media, Sony intends to expand the market for its Blu-ray media by offering a Blu-ray Disc player and internal drives for their VAIO desktop and notebook computers.

Pricing:
Pricing information is similar to TDK's scheme.
Retail Prices : 25GB discs
BD-R (write once):US$20
BD-RW (rewritable):US$25

Sony also plans to offer 50GB dual layer Blu-ray media in June.

Retail Prices : 50GB discs
BD-R (write once):US$48
BD-RW (rewritable):US$60

I find it expenssive

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