Memory Alpha
Memory Alpha
Real world article
(written from a Production point of view)

CED (short for Capacitance Electronic Disc) was a home media format. Originally conceived in 1964, it was only in production from 1981 to 1986, falling victim to poor planning by RCA and delays due to technological problems, causing the format to fail at its introduction due to competition from VHS and LaserDisc, which by then had been introduced.

While the format resembled, and was sometimes confused with, the contemporary LaserDisc format in product form (both metallic coated discs), the two technologies were incompatible as the CED was optically read out with a stylus, much like a classic audio gramophone record, whereas the LaserDisc was read out with a laser beam.

Only a few Star Trek "Videodiscs" were released before production stopped.

Release chronology[]

Date Product released
22 March Star Trek: The Motion Picture; Disc 1: The Menagerie, and Disc 2: City on the Edge of Forever/Let That Be Your Last Battlefield for Star Trek
1 April Disc 3: Trouble with Tribbles/Tholian Web for Star Trek
1 November Star Trek II: The Wrath of Khan, Disc 4: Space Seed/The Changeling for Star Trek
1 March Disc 5: Balance of Terror/Mirror, Mirror for Star Trek
1 July Disc 6 (of 6): Amok Time/Journey to Babel for Star Trek
1 April Star Trek III: The Search for Spock

External links[]