Diamonds are often considered symbols of eternal love. However, their potential to preserve information for millions of years might be even more extraordinary. Researchers have recently developed a ...

Optical storage can last a century, give faster access to data, and is backward compatible with earlier optical technology, yet disk drives and tape rule in long-term storage. Optical media is the ...

TOKYO — A dual-layer rewritable optical-disk technology has been developed by Matsushita Electric Industrial Co. Ltd., one of the main technology leaders in digital video disks. Using a set of violet ...

TOKYO Hitachi Ltd. and Asahi Optical Co. Ltd. have jointly developed an optical-head technology that they say will enable a 100-Gbyte optical-disk system. Hitachi and Asahi use a single objective lens ...