RCA Records

=== 1970s ===
[[File:RCA Records, Harry Nilsson - Nilsson Schmilsson.jpg|thumb|right|Platinum record of album ''[[Nilsson Schmilsson]]'', featuring the 1968–75 Orange RCA Victor label]]
In April 1970, RCA Records announced the first [[quadraphonic]] 4-channel 8-track tape cartridges ("Quad-8", later called just Q8). RCA began releasing quadraphonic vinyl recordings in the United States in February 1973, in the CD-4 format developed by its former subsidiary, the Victor Company of Japan (JVC), and made commercially practical by Quadracast Systems Inc. (QSI). RCA's trade name became "Quadradisc". The CD-4 format required a special cartridge that had a ±1&nbsp;db frequency response out to 50&nbsp;kHz, a CD-4 demodulator which decoded the difference between the front and rear channels from a 30&nbsp;kHz subcarrier, four separate amplifier channels, and four separate speakers for the left and right front and left and right rear. Both the CD-4 Quadradisc and Quad-8 tape cartridge systems were true discrete 4–4–4 quadraphonic systems. Columbia Records introduced a quadraphonic matrix system, SQ, which required a decoder, 4-channel amplifier and the four speakers. The SQ system was referred to as a 4–2–4 matrix system. The [[Warner Music Group]] labels also adopted Quadradisc, but the format never became popular, and both RCA and [[Columbia Records|CBS/Columbia]] abandoned quadraphonic recording in 1976; some of the RCA sessions were later remastered for [[matrix decoder#Dolby MP matrix encoding (2:4)|Dolby encoding]] (same as [[Peter Scheiber]]'s original matrix system) and released on
[[compact disc]] This included [[Charles Gerhardt (conductor)|Charles Gerhardt]]'s acclaimed series of RCA Red Seal albums devoted to classic film scores by [[Erich Wolfgang Korngold]], [[Alfred Newman (composer)|Alfred Newman]], [[Dimitri Tiomkin]], [[Max Steiner]], [[Franz Waxman]], and others, performed by the [[National Philharmonic Orchestra]] and recorded in London's [[Kingsway Hall]].

In order to publish music in Japan, RCA collaborated with the Victor Company of Japan's publishing wing Victor Musical Industries Inc. in 1975 to found Japanese record label RVC.

In mid 1976, the RCA Corporation announced the revival of the Nipper/His Master's Voice trademark. RCA Records reinstated Nipper to most (Victor, [[RCA Victrola|Victrola]], [[RCA Red Seal|Red Seal]] and Special Products) record labels (in addition to returning to the traditional black label color for popular releases) in countries where RCA held the rights to the Nipper/His Master's Voice trademark. Nipper was once again widely used in RCA newspaper and magazine advertisements as well as store displays and promotional items such as [[T-shirts]] caps, posters, coin banks, keychains, watches, coffee mugs and stuffed toys. The trademark was also restored to RCA stationery, shipping cartons and delivery and service trucks.