RECORDING MEDIUM WITH COPY PROTECTION INFORMATION, AS WELL AS DEVICE AND METHODS OF FORMING, RECORDING, PLAYING BACK AND RESTRICTING PLAYBACK FROM SAID RECORDING MEDIUM

摘要

FIELD: information technology. ^ SUBSTANCE: recording medium contains information which indicates whether the recording medium is copy protected, which is meant for use when forming and/or processing copy protected data; and an area where copy protection information is recorded in form of a wavy line if said copy protection information is available. Copy protection information is recorded in form of a wavy line in a certain area of the recording medium. ^ EFFECT: more efficient protection from unauthorised copying. ^ 20 cl, 11 dwg