Compact disc
The compact disc (CD) is a digital optical disc data storage format that was codeveloped by Philips and Sony to store and play digital audio recordings. It uses the Compact Disc Digital Audio format which typically provides 74 minutes of audio on a disc. In later years, the compact disc was adapted for nonaudio computer data storage purposes as CD-ROM and its derivatives. First released in Japan in October 1982, the CD was the second optical disc technology to be invented, after the much larger LaserDisc (LD). By 2007, 200 billion CDs (including audio CDs, CD-ROMs and CD-Rs) had been sold worldwide.Standard CDs have a diameter of , and are designed to hold up to 74 minutes of uncompressed stereo digital audio or about of data. Capacity is routinely extended to 80 minutes and by arranging data more closely on the same-sized disc. The Mini CD has various diameters ranging from ; they have been used for CD singles or delivering device drivers.
The CD gained rapid popularity in the 1990s, quickly outselling all other audio formats in the United States by 1991, ending the market dominance of the phonograph record and the cassette tape. By 2000, the CD accounted for 92.3% of the entire market share in regard to US music sales. The CD is considered the last dominant audio format of the album era, as the rise of MP3, iTunes, cellular ringtones, and other downloadable music formats in the mid-2000s ended the decade-long dominance of the CD.
The ''Digital Audio'' format was later adapted (as CD-ROM) for general purpose data storage and initially could hold much more data than a personal computer hard disk drive. Several other formats were further derived, both pre-pressed and blank user writable, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video CD (VCD), Super Video CD (SVCD), Photo CD, Picture CD, Compact Disc-Interactive (CD-i), Enhanced Music CD, and Super Audio CD (SACD) which may have a CD-DA layer. Provided by Wikipedia
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501by Donnelly, Eleanor C. (Eleanor Cecilia), 1838-1917Location: Hesburgh Libraries, University of Notre Dame
Created 2011
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502by Donnelly, Eleanor C. (Eleanor Cecilia), 1838-1917Location: Hesburgh Libraries, University of Notre Dame
Created 2011
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503by Castro, Christophorus de, 16th/17th centLocation: Hesburgh Libraries, University of Notre Dame
Created 1615
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504by Dalton, Roy C. (Roy Clinton)Location: William H. Hannon Library, Loyola Marymount University
Created 1968
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505by D'Arcy, Martin Cyril, 1888-1976Location: William H. Hannon Library, Loyola Marymount University
Created 1974
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506by Dallas, Robert Charles, 1754-1824Location: William H. Hannon Library, Loyola Marymount University
Created 1815
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507by Connelly, Christopher D.Location: University Libraries of CUA, Catholic University of America
Created 2007
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509by Ó Céileachair, Donchadh, 1918-Location: Marian Library, University of Dayton
Created 1958
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510by Renneville, Constantin de, ca. 1650-1723Location: Paul Bechtold Library, Catholic Theological Union
Created 1987
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516by Donnelly, Eleanor Cecilia 1838-1917Location: Paul Bechtold Library, Catholic Theological Union
Created 1900
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517by Foucauld, Charles de, 1858-1916Location: Paul Bechtold Library, Catholic Theological Union
Created 1964
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518by Marie Sainte-Cécile de Rome, mère, 1897-1929Location: Paul Bechtold Library, Catholic Theological Union
Created 1938
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519by Foucauld, Charles de, 1858-1916Location: Paul Bechtold Library, Catholic Theological Union
Created 1979
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530by Marie Sainte-Cécile de Rome, mère, 1897-1929Location: Paul Bechtold Library, Catholic Theological Union
Created 1998
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531by Domínguez Michael, Christopher, 1962-Location: Paul Bechtold Library, Catholic Theological Union
Created 2004
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532by Dias, João S. CláLocation: Paul Bechtold Library, Catholic Theological Union
Created 2012
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535by Domke, Joan C.Location: Cudahy Archives, Loyola University Chicago
Created 2011
Online version available via Loyola eCommons
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538by Lingendes, Claude de, 1591-1660Location: John J. Burns Library, Boston College
Created 1661
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539by Espence, Claude d', 1511-1571Location: Cudahy Archives, Loyola University Chicago
Created 1569
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540by Aquino, Carlo d', 1654-1737Location: Cudahy Archives, Loyola University Chicago
Created 1730
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543by Lingendes, Claude de, 1591-1660Location: John J. Burns Library, Boston College
Created 1660
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549by Lingendes, Claude de, 1591-1660Location: John J. Burns Library, Boston College
Created 1664
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