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Digital8 (or D8) is a consumer digital recording videocassette for camcorders based on the 8 mm video format developed by Sony, and introduced in 1999. The Digital8 format is a combination of the older Hi8 tape transport with the DV codec. Digital8 equipment uses the same videocassettes as analog recording Hi8 equipment, but differs in that the signal is not analog audio/analog video, but is encoded digitally (using the industry-standard DV codec.) Since Digital8 uses the DV codec, it has identical digital audio and digital video specifications.