Source : Free On-Line Dictionary of Computing

Green Book CD-ROM
     
        A standard {CD-ROM} format developed by {Philips} for {CD-i}.
        It is {ISO 9660} compliant and uses mode 2 form 2 addressing.
        It can only be played on drives which are XA ({Extended
        Architecture}) compatible.
     
        Many Green Book discs contain {CD-i} applications which can
        only be played on a {CD-i} player but many others contain
        films or music videos.  Video CDs in Green Book format are
        normally labelled "Digital Video on CD"
     
        Green Book was obsoleted by {White book CD-ROM} in March 1994.
     
        (1994-11-02)