Panasonic Starts Pilot Production 50GB Blu-Ray Discs
Panasonic has modified its existing pilot production line for single-layer Blu-ray Discs, called BD-ROM, so that it is able to replicate dual-layer BD-ROM discs with 50GB of storage capacity. The new pilot replication line is housed within the Panasonic Disc Manufacturing Corporation of America, which is located in Torrance, Calif. (Single-layer Blu-ray Discs have 25 GB of storage capacity).
The doubling of BD-ROM disc storage capacity is enabled by spin coating technologies developed by Panasonic that create two recorded layers on a single side of a Blu-ray Disc. In the process, readily available inexpensive UV curable resins are used in the creation of the space layer, cover layer and hard-coat, resulting in a reduction in disc replication costs. Video and other data is then embedded in the layers for playback later using a blue laser-equipped Blu-ray Disc player, recorder or BD-ROM drive-equipped PC.
The Torrance pilot production line is able to produce dual-layer BD-ROM discs with the attachment of a dual-layer replication line module to the existing single-layer line. Single-layer BD-ROM discs are currently being produced on the pilot line with more than 80% yield rates. Panasonic expects to provide sample dual-layer BD-ROM discs to the industry for testing by the end of this month.
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