In optical recording, a microscopic depression made on the disk surface by the recording laser beam. Recorded information is contained in the pits and the Spaces between pits-lands.

在光记录技术中，由记录激光束在光盘表面上烧蚀的一个微小凹陷区。记录信息包含在凹区和凸区中。

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In optical recording, a microscopic depression made on the disk surface by the recording laser beam.

在光记录技术中，由记录激光束在光盘表面上烧蚀的一个微小凹陷区。

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