Hardware.fr - Pioneer: 16 layer Blu-ray and 400 GB

Pioneer: 16 layer Blu-ray and 400 GB
>> Storage

Written by Nicolas Gridelet
Published on July 8, 2008

URL: http://www.behardware.com/news/lire/08-07-2008/#9814

Yesterday, Pioneer announced having developed a Blu-ray disk with a capacity of 400 GB thanks to its 16 layers, while now we generally find single and double layer Blu-Ray disks with capacities of 25 GB and 50 GB, respectively.

Development wasn’t easy because there cannot be any interference between the 16 layers when each is being read. The Japanese giant indicates that its previous experience with DVDs was very useful and that it used a disk structure that reduces crosstalk of adjacent layers. As for the read-out system, it will use a light-receiving element that can read out weak signals at a high signal-to-noise ratio. Finally, in the future the company also plans on offering recordable Blu-ray disks based on the same technology. All of the details will be presented at the 2008 International Symposium on Optical Memory and Optical Data Storage taking place in Hawaii starting July 13th.