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,
John Leigh Philips Philips himself became involved in the textile industry. For a time he was in business with his brother Francis, who outlived him, dying in 1850. As a young man Philips frequented the "Roscoe Circle" in Liverpool—the intellectual group around William Roscoe—meeting there William Paulet Carey, James Currie and Daniel Daulby. In late 1803 Philips was granted command of the First Regiment of the Manchester and Salford Corps, a volunteer militia which served as part of Britain's Home Guard during the French Revolutionary Wars. His brother Francis was appointed to a subordinate role in the same Corps alongside three of his