Definition of: CD.In:PC Magazine bzw. PCMag.com Encyclopedia.Ziff Davis,abgerufen am 13.Dezember 2017(englisch):„(A Note on Terminology) In the early 1990s when CD-ROMs first became popular, "CD" meant music, and "CD-ROM" meant data. Today, "CD" refers to both audio CDs and data CD-ROMs, which also include CD-R and CD-RW media.“