CD-R CD-R CD-R (Compact Disc-Recordable) is a digital optical disc storage format. A CD-R disc is a compact disc that can be written once and read arbitrarily many times. CD-R discs (CD-Rs) are readable by most plain CD readers, i.e., CD readers manufactured prior to the introduction of CD-R. This is an advantage over CD-RW, which can be re-written but cannot be played on many plain CD readers. Originally named CD Write-Once (WO), the CD-R specification was first published in 1988 by Philips and Sony in the 'Orange Book'. The Orange Book consists of several parts, furnishing details of the CD-WO,
Philips CD-i The CD-i was abandoned by 1996 and was a commercial failure, estimated to have lost Philips as much as one US billion dollars in the American market. Philips at first marketed CD-i as a family entertainment product, and avoided mentioning video games to not compete against game consoles. Early software releases focused heavily on educational, music, and self-improvement titles, with only a few games, many of them adaptations of board games such as "Connect Four". However, the system was handily beaten in the market for multimedia devices by cheap low-end PCs, and the games were the best-selling software. By 1993