CD yana nufin "compact disc." Karamin faifai ƙaramin diski ne, zagaye, lebur wanda ake amfani da shi don adana bayanan dijital, kamar fayilolin kiɗa, bidiyo, ko fayilolin kwamfuta. Ana karanta bayanan da ke cikin CD ta hanyar lesar katako, wanda ke duba saman diski don karbo bayanan da aka adana a cikinsa. CD ɗin ya zama sananne a cikin 1980s don maye gurbin bayanan vinyl, kuma har yanzu ana amfani da su don kiɗa, software, da sauran aikace-aikace.