Compact disc
Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. The format was originally developed to store and play only sound recordings (CD-DA) but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Disc (VCD), Super Video Compact Disc (SVCD), Photo CD, PictureCD, CD-i, and Enhanced Music CD. The first commercially available audio CD player, the Sony CDP-101, was released October 1982 in Japan.
Jordi Ustrell Aguilà
The development in 1982 of the Compact Disc (CD) by Sony and Philips, and its later version designed to contain date, the CD-ROM, drew the attention of Publishing Companies due to the large capacity and low cost of these discs. At this time, Publisher Marin founded an engineering company called "ComCal" SA with the objective of making major reference works and large document datebases available through microcomputers. Jordi Ustrell had been the technical director of the Company since its foundation.