Having announced just weeks ago that it was working on a 200GB Blu-ray disc, the TDK Corporation has managed to produce it. However, instead of the disc having 8 data layers (25GB each) which you would expect, it has 6 layers. To achieve this, TDK has come up with a way to increase the layer's data capacities to 33GB each (a rise of 32%). The original report on the production of the 200GB BD disc comes from Japanese-language site Techon (which is subscription only).
While it's terrific that a 200GB disc has been produced, this achievement is not without its problems. The density of the bubbles is different than that of a standard Blu-ray disc and there are several other technical issues, so whether or not Blu-ray hardware could even read these discs is unclear.
Source:
Reg Hardware












