CD Video (also known as CDV, CD-V, or CD+V) was a format introduced in 1987 that combined the technologies of compact disc and laserdisc. CD-V discs were the same size as a standard 12 cm audio CD, and contained up to 20 minutes worth of audio information that could be played on any audio CD player. It also contained up to 5 minutes of analog video information plus digital CD-quality sound, which could be played back on a newer laserdisc player capable of playing CD-V discs. One of the first laserdisc players that could play CD-V discs as well was the Pioneer CLD-1010 from 1987. Though it was a CD-based format, CD Video was never given a rainbow book designation.