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,
Gerard Philips a decade. On 19 March 1896 Philips married Johanna van der Willigen (30 September 1862 – 1942). They had no children. Gerard's father was a first cousin of Karl Marx (his paternal aunt was Marx's mother). Gerard was an uncle of Frits Philips, whom he and his brother brought into the business. Later they brought in his brother's son-in-law, Frans Otten. Gerard and his brother Anton supported education and social programs in Eindhoven, including the Philips Sport Vereniging (Philips Sports Association), which they founded. From it the professional football (soccer) department developed into the independent Philips Sport Vereniging N.V. Gerard