CD-Recordable

CD-Recordable CD-Recordable (CD-R) is a write-once, read-many (WORM) recording media that is fully compatible with audio compact disc (CD) players. The medium was jointly invented by Sony, Philips, and Taiyo Yuden and introduced in 1989 as an alternative to the audio-cassette for making private recordings of commercially available music. The recording laser of a CD-R “burns” a spot in a cyanine dye coating on the recordable disc. When played back on a conventional audio CD player, this spot…