DV is an extension given to files that store digital video material. This format is used by video recording devices that save the recorded content on Mini Dv cassettes. Such material was ripped from cameras to DV files using the FireWire interface, which enabled fast transmission (100, 200, 400, 800 Mbit / s), e.g. in relation to the USB port.

The DV format was very popular at a time when DVCR was used for recording. It was a standard not only in home video production. 1 hour of DV movie takes 12.7 GB.