Green Book (CD standard) Green Book (CD standard) The "Green Book", formally known as the "CD-i Full Functional Specification", is a CD standard announced in 1986 by Philips and Sony that defines the format for interactive, multimedia compact discs designed for CD-i players. The standard was originally not freely available and had to be licensed from Philips. However, the 1994 version of the standard was eventually made available free by Philips. CD-i discs conform to the "Red Book" specification of audio CDs (CD-DA). Tracks on a CD-i's program area can be CD-DA tracks or CD-i tracks, but the first track must always be a
Philips CD-i Console lineup. Games that were most heavily criticized include "Hotel Mario", "", "", and "Zelda's Adventure". EGM's Seanbaby rated "The Wand of Gamelon" as one of the worst video games of all time. However, "" was positively received by critics, and has often been held up as the standout title for the CD-i. In October 1994 Philips claimed an installed base of 1 million units for the CD-i. In 1996, the Wall Street Journal reported that total US sales amounted to 400,000 units. Philips CD-i The Philips CD-i (an abbreviation of Compact Disc Interactive) is an interactive multimedia CD player