Lotsa storage
Pioneer has developed a Blu-Ray read only disk that stores 400GB on sixteen 25GB layers.
The laminated sixteen layer disk is especially impressive as it required new techniques to reduce the "cross-talk" (interference from other layers) so that the data at each of the sixteen layers can be recovered reliably.
Each layer retains compatibility with the Blu-Ray standard, however it is unlikely that existing Blu-Ray readers would be able to read these disks.
my god technology is growing so fast, im glad im alive during the time it all started, because this feels great!