See also @uref{http://www.dvdrhelp.com/glossary}. @table @acronym @item CD Compact Disc @item CD-DA @acronym{CD} Digital Audio, described in the ``Red Book'' or ICE 908. This commonly referred to as an audio @acronym{CD} and what most people think of when you play a @acronym{CD} as it was the first to use the @acronym{CD} medium. @item CD-ROM @acronym{CD} Read Only Memory or ``Yellow Book'' describe in Standards ISO/IEC 10149. @item CD-ROM XA CD-ROM EXtended Architecture. A modification to the CD-ROM specification that defines two new types of sectors. CD-ROM XA was developed jointly by Sony, Philips, and Microsoft, and its specifications were published in an extension to the Yellow Book. CD-i, Photo CD, Video CD and CD-EXTRA have all subsequently been based on CD-ROM XA. @item CD-XA See @acronym{CD-ROM XA}. @item FSF Free Software Foundation, @uref{http://www.fsf.org/} @item GNU @acronym{GNU} is not @acronym{UNIX}, @uref{http://www.gnu.org/} @item ISO International Standards Organization. @item SVCD Super @acronym{VCD} @uref{http://www.dvdrhelp.com/svcd} @item VCD Video @acronym{CD} @uref{http://www.dvdrhelp.com/vcd} @item XA See @acronym{CD-ROM XA} @end table