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Acetate disc

The acetate disc with 78 rpm played an extremely important role in the history of sound recording. For many years radio studios all over the world used this form to record voices, sounds, and music for future generations. The acetate disc had a solid core (a disc of metal, glass or fiber) coated with lacquer (acetate) onto which grooves would be cut. The acetate discs were used above all by professionals in the recording field. After the introduction of magnetic tape in the 50's, the acetate discs quickly lost importance.

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