WRITE STRATEGY FOR A DATA STORAGE SYSTEM

摘要

A radiation source control unit controls the power of the radiation source during writing via power patterns. The marks have a number of different shapes due to different power patterns. The power pattern for at least one of the different shapes comprising a first pulse part for writing a first mark section (34) and a second pulse part for writing a second mark section (36), and an intermediate pulse part for creating a spacing section (35) between the first and second mark sections, and the sections of the mark being detectable as a single mark during said reading.