However, if the optical head is off track, then the center spot gets more light (because there are fewer pits off track) and the side detectors will be misbalanced.

• 但是,如果激光头脱离轨道,中心光斑将得到更多的光(因为光斑照射到少量的坑形部分)并且附加探测器将失去平衡。