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 CD-i It was a terrible game machine, and it was a terrible PC." The CD-i's various controllers were ranked the fifth worst video game controller by IGN editor Craig Harris. "PC World" ranked it as fourth on their list of "The 10 Worst Video Game Systems of All Time". Gamepro.com listed it as number four on their list of "The 10 Worst-Selling Consoles of All Time." In 2008, CNET listed the system on its list of the worst game console(s) ever. In 2007, GameTrailers ranked the Philips CD-i as the fourth worst console of all time in its Top 10 Worst