TDK develops 2X, 100GB Blu-ray Disc prototype
By Martyn Williams, IDG News Service
TDK Corp. has developed a prototype Blu-ray Disc that can store twice as much data, and record it at twice the speed, as existing Blu-ray Discs.
The disc, unveiled at a TDK exhibition in Tokyo this week, can record data at 72Mbps (bits per second), double the 36Mbps rate for current Blu-ray Discs. TDK increased the write speed by using a more powerful laser and making some changes to the material of the discs recording layer, said Nobuyuki Koike a spokesman for TDK.