Less than 5% of all CD-i titles are in CD-i Ready format: What's the difference?

CD-i discs aren't copy protected and you're not the first one who want to burn an image of their CD-i game to try with the CD-i emulator. Unfortunately, the Green Book has a few obscure formats, like CD-i Ready. CD-i Ready is a compact disc format based on the CD-i format. CD-i format and CD-i Ready format use different techniques to get audio CD players to skip over the CD-i software and data. CD-i Ready places the software and data in the pregap of Track 1. Standard CD-i format places the software and data into ordinary tracks, but omits the tracks from the table of contents.


CD-i Ready is a compact disc format for mixing audio and data content on a CD. It was developed by Phillips in 1991, based on the CD-i format. The CD-i Ready format uses a particular technique to get audio CD players to skip over the CD-i software and data. CD-i Ready places the software and data in the pregap of track 1 (index 0). Since most CD players assume that the pregap area contains only silence, they skip it. Because of this, CD-i Ready was presented as an alternative to CD-i (which stores data in the regular indexes of the first tracks of a disc), which was more compatible with audio CD players.

The term "enhanced CD" is sometimes used to refer to different CD formats that support a mix of audio and data content. Apart from CD-i Ready and CD-i, these formats include mixed mode CDs and the Enhanced Music CD format.


Known CD-i ready discs are:

-A Christmas Songbook
-Accelerator
-Alien Gate
-2 Unlimited: Beyond Limits