Optical media
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Optical media their implications for archives & museums by David Bearman

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Published by Archives & Museum Informatics] in [Pittsburgh .
Written in English


  • Videodiscs.,
  • Videodiscs -- Library applications.,
  • Archives.,
  • Museum techniques.,
  • Information storage and retrieval systems.

Book details:

Edition Notes

Statementby David Bearman.
SeriesArchives and museum informatics technical report -- 1.
The Physical Object
Pagination74 p. ;
Number of Pages74
ID Numbers
Open LibraryOL16055133M

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• Media failure. All forms of media are susceptible to minor or catastrophic failure. This, of course, depends on the type of media. Removable media are particularly at risk – the tapes saved many years ago may have broken or been stretched or the magnetic signal degraded. Optical media are also volatile. CD and DVD technology was not. Optical media refers to any data storage device or equipment that uses optical data storage and retrieval techniques to read and write data. It stores data digitally on a media device and uses a laser to read data from it. Optical media is also known as optical storage. In computing and optical disc recording technologies, an optical disc (OD) is a flat, usually circular disc which encodes binary data in the form of pits (binary value of 0 or off, due to lack of reflection when read) and lands (binary value of 1 or on, due to a reflection when read) on a special material (often aluminium) on one of its flat surfaces. All optical media should be stored in cool, dry, and dark conditions. Data on DVDs, especially non-replicated, recordable/rewritable DVDs, is subject to loss over time. All optical media should be regularly checked for data degradation. A DVD relies on the interaction of the individual burner, the medium, and the individual player.

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