Grooved records containing images and sounds of Earth were placed on the two NASA Voyager spacecraft launched in 1977. Were these CED's?

The Voyager Interstellar Records were not CED's but gold-plated Audio LP mothers made of copper, which normally would be used to make stamping molds for vinyl LP's. The records were specially mastered to spin at just 16 2/3 RPM and needed several seconds to play back each still image. Playback directions and a stylus cartridge were included with the records.

RCA was involved with the production of the Voyager records, and the image reconstruction uses multiple scan lines similar to television. More.

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