Servo is an important subject of Digital Disk Technology. It is applied to digital optical disk player for home (such as CD, Video-CD and DVD player etc.) and optical memory driver (For example, CD-ROM,DVD-ROM etc.)

• 伺服技术是数字光盘技术的一项重要内容，它广泛应用于家用数字光盘播放机(如CD、VCD、DVD机等)、光盘存储驱动器(如CD-ROM、DVD-ROM等)等方面。