In an optical recording medium on which the main information is recorded on a pre-formed recording track along the track direction and in which the recorded data are read out by optical means, frame sync signals based on the same format as the format for the main information are pre-recorded by offsetting...http://www.google.fr/patents/US5587901?utm_source=gb-gplus-shareBrevet US5587901 - Optical recording medium having a pre-formed recording track which is offset along its width to record frame sync signals of information
Optical recording medium having a pre-formed recording track which is offset ...
