Bitstream Copy

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  • Bit stream backup (also referred to as mirror image backup) involves the backup of all areas of a computer hard disk drive or another type of storage media. Such a backup exactly replicates all sectors on a given storage device. Thus, all files and ambient data storage areas are copied. Bit stream backups - sometimes also referred to as "evidence grade" backups - differ substantially from traditional computer file backups and network server backups. 1


  1. Fenwick & West LLP, FWPS eDiscovery Terminology (11/6/2005). Citing NTI's Computer Forensics Definitions,
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