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 that though Philips had a large booth at the 1995 Electronic Entertainment Expo, there was no CD-i hardware or software on display. "Next Generation" scored the console one out of five stars. After its discontinuation, retrospectively, the CD-i was overwhelmingly panned by critics who blasted its graphics, games, and controls. Microsoft CEO Bill Gates admitted that initially he "was worried" about the CD-i due to Philips's heavy support for the device and its two-pronged attack on both the games console and PC markets, but that in retrospect "It was a device that kind of basically got caught in the middle.