Stretched-film optical recording disc

G - Physics – 11 – B

Patent

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352/32.4

G11B 7/00 (2006.01) G11B 7/24 (2006.01) G11B 7/26 (2006.01)

Patent

CA 1171964

241,000 CAN/REG Abstract of the Disclosure Optical recording disc having a rigid, dimensionally-stable support (18 or 18a) which keeps a plastic film (10) taut and flat so that an optically- recordable coating on the plastic film resists the dimensional changes and warping which it otherwise might experience if unsupported.

394635

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