我把照片储存在光盘里了。

Wǒ bǎ zhàopiàn chǔcún zài guāngpán lǐ le.

I stored photos on a CD.

这是用来安装软件的光盘。

Zhè shì yòng lái ānzhuāng ruǎnjiàn de guāngpán.

This CD is for installing software.

现在用光盘听音乐的人越来越少了。

Xiànzài yòng guāngpán tīng yīnyuè de rén yuèláiyuè shǎo le.

Nowadays, fewer and fewer people listen to music on CDs.