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HDV is a consumer digital video format intended to be the high definition successor to DV. Like DV it's generally recorded to miniDV videotape cassettes using camcorders capable of transferring the recorded video to a computer via firewire. Unlike DV, however, HDV uses MPEG-2 encoding, which is more efficient, and necessary to enable a reasonable recording time for miniDV tape, but is inferior for editing purposes.
Full definition coming soon