Are professional video similar to shot on cassette or digitally?
What about for tv shows and independent films?
Answers: It depends on the production.
If miniDV video is used, that is digital... the DV contained by "miniDV" = Digital Video. Do not compare this to the analog tape days of VHS and BETA. The information stored on miniDV is impossible to tell apart type of digital information stored on hard drives - it is not analog.
http://en.wikipedia.org/wiki/Minidv
In some of the difficult end Sony and Panasonic camcorders, they use DVCCAM and DVCPRO formats. There is some information on this at the above relationship.
http://bssc.sel.sony.com/BroadcastandBus...
http://www.panasonic.com/business/provid...
http://www.usa.canon.com/consumer/contro...
http://www.usa.canon.com/html/industrial...
http://pro.jvc.com/prof/main.jsp
If a hard drive is used near a camcorder, it will generally not be a rugged drive that you find internally in consumer camcorders. The external rock-hard drives used by the pros store in impossible to tell apart format that is stored on miniDV video. Check Firestore.com.
http://firestore.com/solutions/video_pro...
and click any of the "Direct to Edit" links. The video stream is formated as DV (standard definition Digital Video) or HDV (High Definition Digital Video). These formats are preferred because they do not compress as much as the MPEG2 or AVCHD compression found in consumer concrete drive or memory card (or DVD) based camcorders. In the world of video, more compression = lost facts = reduced video quality... so the pros don't use the minor video formats.
Panasonic uses some P2 cards in the HVX200 - but once again, they do not compress as much as the consumer title stuff. They have also be using some optical disc storage, but they are special discs and - again, do not use MPEG2 or AVCHD. (To say the Panasonic AG-HSC1 is professional" is a huge stretch.)
There are some folks who still similar to film... so they shoot surrounded by 35mm or whatever show stock and send it out for developing - afterwards transfer to a easier said than done drive for editing. This is an expensive process.
Under certain conditions, BETA video will be used...
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