The CD-I Bridge format specified in the White Book is a standard for entering CD-I data onto CD-ROM XA discs. A CD-I Bridge disc is a special type of CD-ROM XA disc that satisfies both CD-ROM XA and CD-I standards, allowing it to be played back in both types of players. It can be played back by personal computers, CD-I players, Electronic Books and other products equipped with compatible device drivers.
The White Book, produced by JVC and Philips, used the sector structure of CD-ROM-XA to produce a Video-CD ("bridge disc,' or a hybrid CD derived from the Karaoke-CD concept). Video-CDs can be played in CD-ROM-XA and CD-I drives as well. Video-CD uses interleaved full-motion MPEG video. Another implementation of the White Book is the Kodak Photo-CD.
The White Book, which was released in 1987 by Sony, Philips, Matsushita, and JVC refers to a standard of compact disc that stores not only sound but also still pictures and motion video. These discs, most commonly found in Asia, are usually called "Video CDs" or "VCDs." In some ways, VCD can be thought of as the predecessor to SVCD and DVD.