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
Varuna's Forces to do so. "Varuna's Forces" was being created by the same company who previously developed titles for the Philips CD-i based on both "The Joker's Wild" and "Jeopardy!" TV game shows. It also stars Michael Clarke Duncan in one of his first video game roles along with "Panic in the Park", among other actors that were involved in the production of the project prior to its cancellation. Though the Jaguar CD version was slated to be published in late , it was never released along with the 3DO version due to discontinuation of both platforms. The Saturn version was slated