DV is a format for storing “digital video”. It had been released with combined efforts of top suppliers of camcorder recorders in 1995. The initial DV specification, called Blue Book, was standard inside the IEC 61834 group of standards.

These requirements establish common functions for example fundamental program information simply 1, saving modulation technique, magnetization, and actual videocassettes. Part 2 describes the details of 525-60 and 625-50 systems.

All tape-based video formats are increasingly obsolete as tapeless HD cameras recording on memory cards, hard-disk drives, and optical discs have become the norm, although the DV encoding standard is sometimes still used in tapeless cameras.

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Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone.