What's the difference between NTSC D1 and NTSC DV?
Answers: There are many competing digital video video formats, from among them the more venerated 19-mm D-1 video tape format is a vastly common, (and tremendously expensive,) UNCOMPRESSED, 270 Mbps, standardized* digital component video tape format used contained by the most demanding professional video applications. The majority of DVD-Video discs you’re likely comfortable with be mastered from D-1 master tapes, hence the nonconformist 3:2 (720×480) frame aspect ratio of the DVD-Video standard. There are several factors, principally the cost and the large form factor, that are responsible for the unusual use of the D-1 video tape format outside of traditional broadcast and professional video production applications.
Digital Video (“DV”), and its smaller form factor spawn “MiniDV,” are indeed COMPRESSED digital component video tape formats, including both codec and video specifications, which are codified in the international standard IEC-61834 as economically as SMPTE standards SMPTE 370M, SMPTE 371M, and SMPTE 390M. The 6.35 mm DV tape format is extremely popular amongst serious videographers - from consumer to semiprofessional. Various version of the DV format have be widely used as a cost-effective digital video format by independent filmmakers and have also found intervallic use in professional video applications such as electronic communication gathering (ENG) and broadcasting. The unfinished “DV” format uses 5:1 DCT intra-frame compression at a fixed bitrate of approximately 25 megabits per second (Mbps).
*(SMPTE Standards SMPTE 224M-2003, SMPTE 225M-2003, SMPTE 226M-1996, SMPTE 227M-1996, and SMPTE 228M-1996.)
A Digital Video Primer
http://www.adobe.com/motion/events/pdfs/...
http://www.adamwilt.com/DV.html
http://en.wikipedia.org/wiki/DV
http://users.tkk.fi/~iisakkil/videoforma...
*http://store.smpte.org/category-s/22.htm
D1 (or Full D1) refers to a picture size of 720x480. This is the size used in DVDs and other professional video equipment.
DV is in reality a codec for compressed video.
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