The Compact Disc (CD) single is an optical disc format based on the Compact Disc, but containing a smaller number of songs (typically two for a standard single release, but up to six for an EP).
The first CD single release is reported to be Brothers in Arms by Dire Straits in 1985, and by 1987 CD singles sales had become eligible for inclusion in the UK singles chart.
A smaller mini CD single format was introduced in 1988, but it was phased out in the early 1990s, as it was cheaper to produced CD singles using the standard 120mm Compact Disc format.
With the advent of digital music sales, the CD single has largely been replaced as a distribution format in most countries, and most charts now include digital download counts as well as physical single sales.
Sources / Resources
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