Pioneer 's 16-layer 400 GB Optical Disc
The Pioneer disk is based on Blu-ray Disc (BD) with a breakthrough in material of reflective layers. The specifications of the pick-up head (PUH) of the disc is the same as those for the PUH of blank BD discs, so the Pioneer discs can be read on BD players that are in the market.
Pioneer will release its read-only (ROM) 400GB discs in 2008 to 2010, meanwhile rewritable 400GB discs will make a debut in 2010 to 2012 and the 1TB capacity disc in 2013.
[via Digitimes]