Welcome to DVCAM and MiniDV:

DVCAM / MiniDV

Digital Video (DV) is a digital video format launched in 1994, and, in its smaller tape form factor MiniDV, has since become a standard for home and semiprofessional video production; it is sometimes used for professional purposes as well, such as filmmaking and electronic news gathering. The DV specification defines both the codec and the tape format. Features include intraframe compression for uncomplicated editing, a standard interface for transfer to non-linear editing systems (FireWire, also known as IEEE 1394), and good video quality, especially compared to earlier consumer analog formats such as 8 mm, Hi8 and VHS-C. DV now enables filmmakers to produce movies inexpensively, and is strongly associated with independent film and citizen journalism.

There have been some variants on the DV standard, most notably Sony's DVCAM and Panasonic's DVCPRO formats targeted at professional use. Sony's consumer Digital8 format is another variant, which is similar to DV but recorded on Hi8 tape. Other formats such as DVCPRO50 and D-5 (HD) utilize DV25 encoders run in parallel.

A high-definition version of DV has also been developed, called HDV. It differs significantly on a technical level as it uses MPEG-2 compression. Both formats share the miniDV tape form factor. MPEG-2 compression is much more efficient than that used in DV, in large part due to inter-frame/temporal compression. This allows for higher resolution at bitrates similar to DV. On the other hand, the use of inter-frame compression can cause complications in editing. Nonetheless, an increasing number of editing applications support real-time (native) HDV editing or intermediary codecs.