Abstract: The present invention relates to a method for controlling a dual-beam LBR (Laser Beam Recorder) (56) suitable for mastering a record carrier (60) by writing data in the record carrier in circular or spiral tracks and comprising: means (58) for rotating a record carrier; means (62) for moving a dual-beam laser (61) over the record carrier (60) in a radial direction with reference to the rotation of the record carrier (60); means (65) for controlling the dual-beam laser output power; and means (66) for synchronizing the rotation of the record carrier (60), the movement of the dual-beam laser (61) and the dual-beam laser output power. In accordance with the invention synchronizing the rotation of the record carrier 60; the movement of the dual-beam laser 61 and the dual-beam laser output power is performed such that at least a part of the data is written in at least one track comprising a different arrangement than circular or spiral.

Abstract: A record carrier 21, a recording method and a recording device are provided for qualitative and record carrier independent high speed data recording. The record carrier 21, such as an optical record carrier, comprises at least one information area 210 with at least one reference 2100 to a class 22 of write strategy providing a direction instruction to optimize recording process. The recording method represents an intelligent write strategy optimization method seeking after a suitable write strategy for the record carrier by use of the reference 2100 to a class 22 of write strategy as a backup information on beforehand and by use of details on the recording device being operative for executing the recording method. Coupling of the information about the recording device and the record carrier increases the quality of written data, and the recording method optimizing the write strategy becomes considerably faster when information about the record carrier is known on beforehand.

Abstract: The invention provides for a method of manufacturing a stamper for embossing data on an optical disc comprising the steps of printing the data to be embossed directly on a glass master to form a printing layer; sputtering of metal or alloy on said printing layer; forming a layer of metal or alloy on the sputtered layer, separating the metal or alloy layers from the glass to form a stamper.