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1877 Thomas Edison phonograph cylinder
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1887 chichester bell and charles tainter graphophone
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1895 emilie berliner gramaphone recorded
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1898 valdemar poulseen magnetic wire recording
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1940 jack mullin reel to reel tape
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1948 peter goldmark LP Record
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1958 RCA victor tape cartidige
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1962 earl muntz stereo-park
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1963 phillips compact cassete
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1966 frank stanton PlayTape
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1967 Phillips MiniCassete
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1972 MCA and Phillips Lasser disc
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1982 phillips and sony compact disc
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1987 sony digital audio tape
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1991 Sony MiniDisc
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2000 DVD Forum DVD-Audio