The Blu-ray Disc Association aproved the BD-R recording specifications for 6x in March (Blu-ray Disc Recordable Format Ver.1.3).
The new discs have a wide power margin at any writing speeds from 1X to 6X. This enables high-quality recording, even if the drive's laser power fluctuates, resulting in greater overall drive compatibility.
Panasonic's adoption of newly-developed disc technology produces well-balanced discs with precise signal grooves. This improves servo characteristics and enables the laser beam to focus to the right position even when the disc is rotating fast while writing at 6X.
Panasonic plans to release its first Blu-ray disc drives compatible with 6X write-once Blu-ray discs by the end of September 2008. S.Korean is already offerign 6x BD drives for PCs, which feature reading and writing speeds of 6x. The latest models are the BE06, GBC-H20L and GBW-H20L.