Blue Book (CD standard) Blue Book (CD standard) The Blue Book is a compact disc standard developed in 1995 by Philips and Sony. It defines the Enhanced Music CD format (E-CD, also known as CD-Extra, CD-Plus and CD+), which combines audio tracks and data tracks on the same disc. The format was created as a way to solve the problem of mixed mode CDs, which were not properly supported by many CD players. The standard is not freely available and must be licensed from Philips. E-CDs are created through the "stamped multisession" technology, which creates two sessions on a disc. The first session of
Gerard Philips a decade. On 19 March 1896 Philips married Johanna van der Willigen (30 September 1862 – 1942). They had no children. Gerard's father was a first cousin of Karl Marx (his paternal aunt was Marx's mother). Gerard was an uncle of Frits Philips, whom he and his brother brought into the business. Later they brought in his brother's son-in-law, Frans Otten. Gerard and his brother Anton supported education and social programs in Eindhoven, including the Philips Sport Vereniging (Philips Sports Association), which they founded. From it the professional football (soccer) department developed into the independent Philips Sport Vereniging N.V. Gerard