Who invented the CD?

Optical disc (English: optical disc) was invented by the United States in the1960s, when the storage format was mainly analog. Chinese mainland once called it an optical disc, which is a medium for recording and reading information through laser scanning. Image reference: upload.wikimedia/ * * */zh/Thumb /3/38/CD _ DISC/600px-CD _ DISC Download HD version (1992x 1992.

18 10 KB) Melody's 90-minute long platinum CD photography: Weihao.chiu (Hao Wei's Weihao.chiu collection. Chiu) Red laser CD (compact disc) VCD (video compact disc) DVD (digital versatile disc) EVD (enhanced versatile disc) FVD (forward versatile disc). HVD (High Definition Multifunctional Disc) HDV (High Definition Video) NVD (Network Video Disc) VMD (Multifunctional Multilayer Disc) DualDisc (Double Disc) Blu-ray Laser HD DVD Blu-ray Disc 2006-12-1321:39: 33 Supplement: A group of scientists in the United States.

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Search Melody's 90-minute ultra-long platinum CD (CD) was invented by the United States in the 1960 s, and the storage format is still mainly analog format. Chinese mainland once called it an optical disc, which is a medium for recording and reading information through laser scanning. Directory [hidden] 1 disc type 1. 1 red laser 1.2 blue laser 1.3 other [edit] disc types [edit] red laser CD (disc), VCD (video disc) and DVD (digital versatile disc) Hvd (High Definition Multifunctional Disc) HDV (High Definition Video) NVD (Network Video Disc) VMD (Multifunctional Multilayer Disc) Double Disc (Double Disc) [Edit] Blue Laser HD DVD Blu-ray Disc [Edit] Other MD LD magneto-optical discs

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