光盘

The videodisc is made of liquid crystal polymers, about the size of a phonograph record.

是由液晶聚合物制成的，大小和一个唱片差。

CD outsells vinyl for the first time.

的销售量首次超过塑胶唱片。

Do you want to overburn your disc?

22你想闭合刻录你的？

A DVD music system plays discs that look like CDs, but blows them out of the water.

DVD 音乐系统播放的外表像CD，可是比CD的效果要好得。