激光唱碟的制作原理与普通唱片及录音磁带是不同的。它的录制方法有两大类:一是模拟录音,二是数字录音。激光唱片上都标有一组英文字母的代号,它是用来表示录音方法的,主要有以下几种: AA,第一个A表示模拟录音,第二个A表示模拟混音。 AAD,除两个A表示模拟录音,摸拟混音外,D表示数码技术制版。 The principle of making a CD is different from that of a regular record and tape. It has two major categories of recording methods: First, analog recording, and second, digital recording. Laser disc are marked with a set of English letters, which is used to indicate the recording method, there are the following: AA, the first A analog recording, the second A analog mixing. AAD, in addition to two A analog recording, analog mixing, D digital plate.