Release Issued by Panasonic:
Panasonic to Introduce World’s First 4x Write-Once Blu-ray Discs
Panasonic has announced that they will be globally introducing Write-Once Blu-ray Discs (BD-R) with 4x writing speed.
The new discs will be available in both 25GB and 50GB, and will be introduced in the market this July and September respectively.
| Model Number |
Specification |
Market Launch |
| LM-BR25LDE |
Write once, 25GB, Single-Sided, Single Layer |
July, 2007 |
| LM-BR50LDE |
Write once, 50GB, Single-Sided, Dual Layer |
September, 2007 |
With the announcement of the launch of 4x BD drives, the new discs have the capability of 4x speed writing and reading, allowing users to handle large amounts of data or High Definition content with greater convenience. Panasonic is the first company to announce the market introduction of 4x BD-R Discs.*
*as of July 3rd, 2007
Since introducing their first dual layer 1xBD-RE Disc in 2004, Panasonic has continued to lead the market and develop Blu-ray Disc technologies to meet the growing demand for high-speed reading and writing of massive volumes of data. The new 4x Discs have a maximum data transfer speed of 144Mbps, which means they can copy a 1GB folder in just one minute, whilst a DVD-RW(2x data transfer speed) needs 6 minutes. This is achieved by the application of new phase-change recording technology which was realised through Panasonic‘s 35-years of experience in Optical Disc development. The result is precise and stable recording even when writing at 4x high speed.
Panasonic succeeded in applying this technology not only to single layer Discs, but also to dual layer Discs, allowing users to write massive 50GB data at 4x high-speed without turning over the Disc.
The newly developed recording layer has a wide power margin at any writing speed from 1x to 4x. This enables high quality recording, even if the drive’s laser power fluctuates, resulting in greater overall drive compatibility.
The new Discs offer extremely low error rate thanks to the newly developed film forming technology which minimizes dust generated in the sputtering process. The error rate is reduced to 1/10 of that of a conventional Disc, ensuring high reliability and a high quality recording.
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