Patent ID: 7450485

Claim:
A device for recording information by writing marks in a track on a record carrier via a beam of radiation, the device comprising: a head for providing the beam; a radiation controller configured to control the beam to write the marks in a selected part of the track, the marks having a main mark intensity and a mark length within a predefined range of mark lengths: and a secondary radiation controller configured to control the beam to write secondary marks in the same selected part of the track, wherein the secondary marks having a secondary mark intensity that is substantially different from the main mark intensity and a length substantially longer than mark lengths in the predefined range, wherein the secondary radiation controller is adapted to control the beam to write a combination of the marks and the secondary marks during said recording of information, wherein the secondary radiation controller is adapted to control the beam to create the combination of the marks in which marks located at an area of track having a secondary mark, have a main mark intensity different from the main mark intensity of marks located at an area of the track not having a secondary mark, and wherein a scanning signal level difference between marks and intermediate spaces is substantially equal at both areas of the track.