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Consumer Electronics by S. P. Bali

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OPTICAL RECORDING MEDIUMS

The storage of information by optical methods has many advantages over the conventional method of magnetic recording. As optical recording had obviously much to offer, an intense research began for materials on which information could be stored with the aid of a laser. Three classes of materials that seem suitable for the optical recording of information are: tellurium–selenium alloys, organic compounds and magneto-optical materials.

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