Method and device for markers recording in the information layer of the optical data carrier and data carrier for the use thereof

摘要

Methods and devices are described for writing an optical record carrier, in which a mark representing recorded data is written in a phase-change layer of a record carrier by a sequence of radiation pulses. A rear heating pulse 24 is introduced after a last write pulse 23, 26 and a front heating pulse 25 is introduced before the first write pulse 22,26. The power level 13 of the front heating pulse and the power level 15 of the rear heating pulse may be dependent on the length of the mark to be recorded and on properties of the record carrier. The method results in a reduced jitter of the marks written, especially when writing at high recording speeds.