CD Compact disc
（重定向自CD recording）
![](/Images/godic/202501/03/Compact_disc.svg2732.png")
![标准（120毫米）CD](/Images/godic/202501/03/Interference-colors2732.jpg")
![80 毫米的CD](/Images/godic/202501/03/Small_cdisk_ubt2732.jpeg")
![CD的层解：A 聚碳酸酯光盘层，通过撞击来记录数据B 光泽面反射激光C 一层清漆可以使光泽面保持发光D 艺术样品印制在最上端的盘面E 用激光束读取数据时，它会反射到传感器上并转换为电子信号](/Images/godic/202501/03/CD_layers.svg2732.png")
CD（英语：Compact Disc），是一种用以保存数字数据的光学盘片，原被开发用作保存数字音乐。CD在1982年面世，至今仍然是商业录音的标准保存媒体。
在CD尚未发明之前，音响系统都是属于模拟信号，音乐的来源大多是30公分直径的密纹唱片、收音机以及录音机等，CD发明之前根本就没有数字音响，因此CD可说是继晶体管以来最伟大的发明。
CD recording
中文百科
英语百科
Compact disc CD
（重定向自CD recording）
![This disc is highly corroded by time. The error correction cannot correct all errors. Two minutes can be played, however.](/Images/godic/202501/03/Time_destroyed_CD2732.JPG")
![Sony CD Walkman D-E330](/Images/godic/202501/03/Sony_CD_Walkman_D-E3302732.jpg")
Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Disc (VCD), Super Video Compact Disc (SVCD), Photo CD, PictureCD, CD-i, and Enhanced Music CD. Audio CDs and audio CD players have been commercially available since October 1982.