cmn: 光盘

Meaning
means	(noun) a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser compact disk, CD, compact disc
means	(noun) a compact disc on which you can write only once and thereafter is read-only memory CD-R, compact disc write-once, compact disc recordable, CD-WO
means	(noun) a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user CD-ROM, compact disc read-only memory