MINI DV BACKUP PROFESSIONAL

Was designed as the ultimate realisation of this AV/IT vision. S tapes have a recording time of approximately 60 minutes L tapes record up to 194 minutes. Betacam SX cassettes come in the same S and L sizes as other Beta formats, coloured yellow. Betacam SX uses MPEG 4:2:2 compression with 4 channels of 48 KHz 16-bit PCM audio. It also had the advantage of being compatible with Betacam SP tapes. Launched in 1996, Betacam SX served as a transitional format which was cheaper than Digital Betacam. Large: cassettes measure 254 x 145 x 25 mm Small: cassettes measure 156 x 96 x 25 mm There are 5 audio channels - 4 main channels (uncompressed 48KHz PCM) and 1 cue track. PAL resolution is 720x576, NTSC resolution is 720x480. Digital betacam records component video with 10-bit YUV 4:2:2 compression. Cassette sizes are the same as other Beta versions: S (small) tapes record up to 40 minutes, L (large) tapes record up to 124 minutes.

MINI DV BACKUP PROFESSIONAL

Digital Betacam attracted a fair amount of professional support but didn't go as far as to become an industry standard like it's predecessor. Digital Betacam was superior in performance to DVCam and DVCPro, while being cheaper than D1. The compression used results in some quality compromises compared to higher bandwidth HD recording formats.ĪKA Digibeta or D-Beta, was introduced by Sony in 1993 as a replacement for the analog Betacam SP format. HDV is an inexpensive high-definition video recording format which uses MPEG2 compression to fit HD content onto the same DV or MiniDV tapes originally developed for standard definition recording. Chroma resolution is improved by using 4:2:2 chroma subsampling. This has the effect of cutting total record time of any given storage medium in half. Standard: cassettes measure 124 x 76 x 14 mmĭVCPRO50 was introduced by Panasonic in 1997 for high-value electronic news gathering and digital cinema, and is often described as two DV codecs working in parallel. The DVCPRO50 doubles the coded video data rate to 50 Mbit/s. DV-Cam produces excellent quality pictures and is frequently used within the media industry.

DV-Cam still utilises ¼' tape and compression ratio of 5:1 at 25 Mb per second with signal sampling rate of 4:1:1. The tape speed and track width was increased from DV format and metal evaporated tape is used rather than metal particle tape. DV now enables filmmakers to produce movies inexpensively, associated with no-budget cinema.ĭV uses DCT intraframe compression at a fixed bitrate of 25 megabits per second.ĭV-Cam is Sony's variation of a theme, sitting somewhere between DV and DVC-PRO. Features include intraframe compression for uncomplicated editing, and good video quality, especially compared to earlier consumer analog formats such as 8 mm, Hi-8 and VHS-C.

The DV specification (originally known as the Blue Book) defines both the codec and the tape format. Digital Video (DV) is a video format launched in 1996, and, in its smaller tape form factor MiniDV, became one of the standards for consumer and semi-professional video production.

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