laserdisc

noun

1. 激光光盘；激光影碟
   a plastic disc like a large CD on which large amounts of information, such as video or music, can be stored, and which can be read by a laser beam

1. This is when we learned the laserdisc containing the TA trailer had been sat upon.
   就在那时我们得知装有《横扫》预告片的光盘被坐烂了。