Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982.
Payola, in the music industry, is the illegal practice of payment or other inducement by record companies for the broadcast of recordings on commercial radio in which the song is presented as being part of the normal day's broadcast, without announcing this prior to broadcast.
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.
Radio programming is the process of organising a schedule of radio content for commercial broadcasting and public broadcasting by radio stations.
A radio station is a set of equipment necessary to carry on communication via radio waves.
A record label, or record company, is a brand or trademark associated with the marketing of music recordings and music videos.
In broadcasting, rotation is the repeated airing of a limited playlist of songs on a radio station or satellite radio channel, or music videos on a TV network.
In music, a single, record single or music single is a type of release, typically a song recording of fewer tracks than an LP record, an album or an EP record.