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Posted by Richard Crowley on 10/01/05 21:33
phil-news-nospam wrote ...
> PTravel wrote:
> | MiniDV video (technically DV-25) is usually stored on a computer as
> | DV-codec-encoded AVI. You'll need 13.7 gigabytes per hour of video.
> | Remember, too, that you need far more if you're doing any editing.
>
> If all your software can handle DV directly, there's no need to store
> as AVI.
Curious why you so rarely see DV files. I've never encountered one.
> AVI encapsulates audio and video separately,
To be precise AVI *Type 2* stores video and audio separately.
OTOH, the more commonly used AVI Type 1 stores them together.
In fact the "DV codec" just dumps the bitstream directly from the
camcorder into the AVI container file. There is no encoding/decoding/
recoding involved. Every one and zero is stored in the AVI file just
as it was stored on the tape. Same with storing DV in a MOV file.
> but DV already contains both
> video and audio in a single codec classified as a video codec. The
> result
> is an AVI file with duplicated audio (unless the program did it wrong
> and
> left the audio out of the AVI layer). By storing DV directly, you
> have both
> video and audio, and no redundancy, saving a GB or so of space.
Right, and using AVI Type 1 accomplishes exactly the same thing.
> Just be sure all your software know how to handle .dv files, including
> your
> DVD authoring software. If not, you'll just have to use the AVI
> format with
> DV codec.
What do you recommend for capturing to DV format files?
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