Abstract
Optical data storage has finally emerged as a credible member of the data storage hierarchy. Currently, magnetic recording dominates this approximately $50 billion/yr industry, and many regard optical recording as a replacement for existing magnetic recording devices. However, current limitations in data rates and access times make this unlikely in the near term. Furthermore, while the magnetic recording industry is large, it is estimated that only 1% of current data is on magnetic DASD or tape, and <5% is computer readable. This indicates that there is a huge market for a low cost on-line or near-line data storage technology, and the attributes of optical recording (removability, high areal density, and the ability to publish on it using CD audiolike technology) make it attractive for this application.
© 1990 Optical Society of America
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