0 the use of light to write and read information to and from a device such as a CD or DVD:
CDs and DVDs, like all optical storage technologies, store data in the form of microscopic pits that represent these binary digits.
Almost every company involved in optical storage is also looking at holographics as a potential candidate for the next generation of optical disc.
The returns were small, so manufacturers were not able to justify the cost of research to extend the boundaries of optical storage.
