In multimedia, the set of standards developed by Sony and Philips in 1985 for the compact disc-read only memory. The Yellow Book standard (so-named because the publication containing the specifications had a yellow cover) describes the physical structure of the disc, the size of the sectors on the disc, the rotational speed of the disc, and the specifications for reading and writing data from and to the disc. See Compact Disc-Read Only Memory and Compact Disc.