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
Philips (family) was the addressee of many of her cousin Karl Marx's letters (e.g.) and later, a member of the Dutch section of the International. Lion's son Frederik Philips was a merchant banker who financed the setting up of the Philips lighting company which was run by his son Gerard Philips. After a few years Gerard was joined by his younger brother Anton Philips who revolutionised the fortunes of the company. Anton was succeeded by his son-in-law Frans Otten who was married to Anton's eldest daughter. During the war Anton fled to England in a company armoured payroll van along with Princess