HDV is a format for recording and playback of high-definition video on a DV cassette tape. The format was originally developed by JVC and supported by Sony, Canon and Sharp. The four companies formed the HDV consortium in September 2003. Conceived as an affordable high definition format, HDV quickly caught on with many professional users due to its low cost, portability and image quality acceptable for many professional productions.
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HDV is a format for recording and playback of high-definition video on a DV cassette tape. The format was originally developed by JVC and supported by Sony, Canon and Sharp. The four companies formed the HDV consortium in September 2003. Conceived as an affordable high definition format, HDV quickly caught on with many professional users due to its low cost, portability and image quality acceptable for many professional productions.
Two major versions of HDV are HDV 720p and HDV 1080i. The former is used by JVC and is informally known as HDV1. The latter is preferred by Sony and Canon and is sometimes referred to as HDV2. The HDV 1080i defines optional progressive recording modes, and in recent publications is often called HDV 1080 or 1080-line HDV as progressive 1080-line recording becomes commonplace.
Most HDV camcorders use "small" MiniDV/DVC cassettes. Some shoulder-mount camcorders are also capable of recording onto "large" DV/DVCAM cassettes. The recording time is the same as DV Standard Play. Unlike DV, HDV does not offer Long Play speed.
HDV is backwards compatible with DV, meaning that HDV equipment can play and record DV content. On the other hand, DV devices cannot play nor record in HDV format.
HDV and HDV logo are trademarks of Sony and JVC.
HDV 720p
HDV 720p closely matches broadcast 720p video standard in terms of scanning type, frame rate, frame size, aspect ratio and data rate. Presently, JVC is the only manufacturer of HDV 720p camcorders. JVC was the first to release an HDV camcorder, the handheld GR-HD1. Later JVC shifted its HDV development to shoulder-mounted cameras.
A common misconception is that JVC developed a proprietary extension to HDV called ProHD, featuring film-like 24-frame/s progressive recording mode and LPCM audio, for professional use. JVC has clarified that ProHD is not a separate format, but "an approach for delivering affordable HD products" and a common name for "bandwidth efficient professional HD models". JVC has stressed out that 24-frame/s progressive recording and LPCM recording/playback have always been part of the HDV format specification. Until 2009, when JVC expanded the ProHD lineup to include tapeless camcorders recording in XDCAM EX format, HDV 720p was the only high definition recording format offered by JVC. The company went to great lengths to promote the format as an appropriate solution for professional high definition video production.
