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

光是由液晶聚合物制成，大小和一个唱片差不多。

CD outsells vinyl for the first time.

光销售量过塑胶唱片。

Do you want to overburn your disc?

22你想闭合刻录你光？

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

DVD 音乐系统播放光外表像CD，可是CD果要好得多。