Method and apparatus for recording marks on a write-once record carrier

摘要

The present invention relates to a method and a corresponding apparatus for recording marks representing data in an information layer of a write-once record carrier by irradiating the information layer by means of a radiation beam, wherein a mark is written by a write pulse ( 10 ) and said information layer comprises an organic material. In order to reduce pit deterioration which occurs when marks are written after a short space, in particular at high speed write once recording, it is proposed according to the present invention that the write pulse ( 10 ) comprises a front portion ( 21, 22 ) having a write power level increasing with time.