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
The Legend of Zelda was developed and released for the Philips CD-i in the early 1990s as a product of a compromise between Philips and Nintendo, after the companies failed to develop a CD-ROM peripheral for the Super NES. Created independently with no observation by or influence from Nintendo, the games are , together with "Zelda's Adventure". Nintendo never acknowledged them in the "Zelda" timeline, and they are considered to be in a separate, self-contained canon. These games are widely acknowledged to be the worst installments in the series. Three "Zelda"-themed LCD games were created between 1989 and 1992. The "Zelda" version of Nintendo's