Blue Ray 200 GB

Blue Ray-based peripherals with 30GB capacities should start being available.
However, Sony should announce in short term, 100 and 200 GB version. 100GB version should be available by 2007. To have media with such storage capacity, Sony is using multilayer media, that way , the 100 GB version will have 4 layers, while the 200 GB will have 8 layers!
In a near future, competition between optical media manufacturers will take place on the number of layers possible to implement on a define media, and not anymore on the laser frequency. One will also need to develop lens allowing a precise focusing of the laser beam for each layer.