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.
Guillermo Cides
In 1994, the sound engineer Guillermo Zuloaga asked him to produce his first solo CD which was edited at the end of 1994, called The Inner World of the Planets. It is considered to be a significant CD inside the world of the Stick. The inventor of the instrument Emmett Chapman wrote to Cides in a letter: " ... you have made real what I had in mind when I designed this instrument " after listening to his first work.