Blu-ray: 16 layers and 400 GB

Pioneer announced to have succeeded in producing a Blu-ray disc equipped with 16 layers of 25 GB.
The secret of these media lies in the way in which the layers are arranged so as the interferences in readings caused by the adjacent layers is reduced to a minimum.
Of course, it awaits a technological demonstration and has very little chances to be accessible by the general public in the next years. However with this announcement, Pioneer reawakens the good memories of everyone in a market where it has a chance to make some sparks.