METHOD FOR PROTECTING OPTICAL DISK FROM RECORDING, FOR RECORDING AND/OR PLAYBACK DEVICE FOR OPTICAL DISK (VARIANTS) Russian patent published in 2005 - IPC

Abstract RU 2244964 C2

FIELD: optical data carriers.

SUBSTANCE: for protecting optical disk from recording, information concerning protection from recording is read, which is previously recorded in at least one zone of starting or ending area of data carrier, and it is determined, whether the latter is in state of recording protection. In variant, when carrier is placed in cassette body, and body has aperture for forbidding recording protection of data on disk, it is determined, if recording protection state of recording protection data written on disk is matches with state of recording protection of said aperture, and recording of new data is prevented, if said protection data and aperture position forbid recording. In a variant information concerning recording protection is stored in zones of disk identification of at least one of zones of starting and ending area of carrier.

EFFECT: higher efficiency.

5 cl, 16 dwg

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RU 2 244 964 C2

Authors

Ko Dzung-Van

Li Kiung-Geun

Dates

2005-01-20Published

1999-06-11Filed