Scientists have developed a new type of optical disc that can increase information storage capacity to the "petabit" level — 125 terabytes of data, or the combined storage capacity of about 15,000 ...

Later this year, Sony will begin delivering a new line of broadcast products based on a single-sided optical disc. The random access disc, using blue-violet laser technology, represents a new ...

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 ...

A direct access storage device that is written and read by light. The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges ...