Read-write optical disk holds 50 Gbytes

Conventional read-write optical disks include DVDs that can store 4.7 Gbytes of data on one side of a 120-mm-diameter disk (9.4 Gbytes double-sided). But upcoming applications will require much larger capacity.

OSAKA—An ultrafast video camera that can record moving images at 1 million images per second has been jointly developed by an international collaboration involving three countries and five academic and industrial research groups. Kinki University and the University of Applied Sciences Osnabruck (Osnabruck, Germany) developed the image-capturing element, with Link Research Corporation (Osaka) overseeing analysis such as the simulation of the internal charge. Philips Co. (Eindhoven, The Netherlands) fabricated the prototype of the image-capturing element, while the camera body was developed by Shimazu Seisakujo at the Basic Research Laboratory (Osaka).