| 摘要 |
The invention relates to a method and system for recording data by a plurality of laser beams (A, B) on an optical disc, said optical disc comprising segments which ( 1 - 51 ) are each identified by a synchronization pattern, said plurality of laser beams comprising at least a first laser beam (A) which has a first position on said optical disc for recording/reading data on a first segment and a second laser beam (B) which has a second position on said optical disc for recording data on a second segment, said method comprising the steps of: -calculating ( 410 ) said second position from said first position and the relative distance between said first laser beam and said second laser beam, -detecting ( 420 ) a synchronization pattern by said second laser beam, and -starting ( 430 ) to record data with said second laser beam on the basis of said second position and said detected synchronization pattern.
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