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  CDR

 Sigma KEE - CDR
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CDR
A type of CompactDisc that can be written on once and read from multiple times.
Relationships      
Parents CompactDisc An instance of CompactDisc is a flat, disc-shaped DigitalDataStorageDevice that has a reflective medium on at least one side, in which a laser is used to write and read bits of data.
  WriteOnceDataStorage A DigitalDataStorageDevice on which the DigitalData once written can not be deleted or altered, e.g. CD-R, DVD-R.


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