TDK still decided to release 100 Go BD-R

Last summer, TDK began to communicate about Blu-Ray blank medias featuring not only 2 but 4 layers. As each of them may contain 25 Go data, you'll reach a final 100 Go on a 12 cm surface.

The writing speed will reacg 27 Mo/s, which theoretically leads to a one hour burning session.
Such 4 layer products, due to their prices not yet communicated but surely huge, should be aimed at professionals.