when was the CD player invented?

Answer 1

The compact disc player was invented by Philips and Sony in 1980. It was first sold in 1982 and took off in 1985. Brothers in Arms by Dire Straits in 1985 helped popularise the format becoming the first record to sell a million copies in CD format.

Answer 2

The CD player was invented during a 6 year joint venture that bear fruit in 1980 with the presentation of the first CD player by Sony and Philips. The first CD factories where located in Japan and in West Germany, under the Sony and Polygram brand names respectively. The first CD that arrived to the shelves was made by Sony. The honor of opening the CD era was given to Beethoven's Ninth Symphony. The track had to be remastered using an old recording directed by Bruno Walter. The original CD was designed to fit up to 75 minutes of music, which is three more minutes than the length of the above mentioned symphony. Interestingly Sony purchased the rights to CBS Records a company that years later was bought by Sony.

Answer 3

Compact disks where invented in 1982. When they were invented and when they became available for sale are two different things you better be careful about which date you choose:

1969 - The idea of creating a CD was conceived by Klass Compaan, a physicist that worked at Phillips Research. The main part of the idea, a lot like the record, was being able to use a master template as a mould to create disks for photographic or video images. This could be done in less time than it took to create other types of media and the resulting disk could hold much more information.

1970 - Klass Compaan became partners with another Phillips researcher, Pete Kramer. They spent the next two years investigating how practical such a system was.

1972 - Two years after starting to investigate how practical the system was, they completed a glass disk prototype and determined that a laser will be needed to read the information.

Later that year and in the following years, Phillips developers took this idea and expanded on it with the idea that an audio disk done by similar means. Phillips soon developed the first audio compact disk prototype.

1978 - Phillips soon ran into problems with the development of the compact disk and decided to collaborate on the idea with Sony. There were soon suggestions that world wide standards should be made for similar compact disk like prototypes.

Latter that year, more decisions about the Compact Disk were made, with PolyGram (a division of Phillips) deciding that polycarbonate would be the best material for Compact Disk’s, that the data should start on the inside of the disk and spiral out, and that the Diameter should be 115 mm. The type of laser to be used was also selected.

1979 - Prototype Compact Disk systems were soon demonstrated in Europe and Japan and with the Phillips and Sony collaboration going ahead, more standards were made. Phillips and Sony decide to set the standard sampling rate of the CD to 44.1 kHz, to have 16 bit audio, and the maximum playing time to be just over 74 minutes.

As the current disk diameter did not allow enough room for these specifications, the disk diameter was changed to 120 mm.

1981 - With the announcement of Phillips and Sony’s CD standard, they decided to end their collaboration so they can work on their individual products. Also during 1981, Sharp started to mass produce semiconductor lasers.

1982 - Sony and Phillips with in one year had a product ready to go, and soon released the CD to the public

In the years after 1982, the Compact Disk continued to climb in popularity. Soon there were many devices that used the CD. CD-ROM’s were used to store computer files, Cars were fitted with CD players, and portable CD players were sold.

Answer 4

i dunno but i got mine in 1993 i remember i got mine after the fact tho... so its for sure before 93