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
The Vision Factory The Vision Factory The Vision Factory (also known under the names SPC Vision, SPC Codim and SPC Group) was a Dutch developer of video games for the Philips CD-i. The Vision Factory was originally a developer of business software named SPCC (allegedly an acronym for Sergeant Pepper's Computer Company). They impressed Philips with CD-i games with colorful sprites, like the shooter "Alien Gate". "The Vision Factory" was the label under which the SPC games were released. Their most famous game is probably the puzzle game "Dimo's Quest", that was originally developed by Boeder Games / Infernal Byte Systems for the