Re: [MLUG] video compression

["Ryan Thornton" <EMAIL:PROTECTED>]

Those 13gb/hour video files are already mpeg4 compressed I believe.
My brother got a HD video camera and I've been playing with the same
situation.  I've concluded the best backup is keeping the original
tapes and just buying more.

- Ryan

On Jan 7, 2008 11:09 AM, Mike Miller <EMAIL:PROTECTED> wrote:
> On Mon, 7 Jan 2008, Scott Hussey wrote:
>
> >> ----- Original Message -----
> >> From: "Mike Miller" <EMAIL:PROTECTED>
> >> To: "MLUG membership" <EMAIL:PROTECTED>
> >> Sent: Monday, January 07, 2008 2:37 AM
> >> Subject: [MLUG] video compression
> >>
> >>
> >>> My digital video camera stores raw video on tapes that I transfer to
> >>> my hard drive where they consume about 13 GB/hr .avi files.  I would
> >>> like to retain all the information in the original files somehow and
> >>> be able to reuse the digital tapes, but the files are too big to fit
> >>> on a DVD.  I compressed a 677 MB avi file using gzip, but the
> >>> resulting .avi.gz file was still 599 MB, and it took a long time to
> >>> compress.
> >>>
> >>> Maybe I can just process the .avi files in the usual way to make video
> >>> DVDs without experiencing a noticeable loss of video or audio quality.
> >>> Do any of you have experience with this?
> >
> > AVI is just a container. It depends on the video codec used to within
> > the AVI container. At 13 GB/hr, you should have enough info to transcode
> > it to mp4 without noticeable degradation. Check out ffmpeg, I've used it
> > to transcode stuff and it is pretty easy.
>
> I should study AVI and codecs a little more.  I knew that there were
> different AVI formats because I have had AVI files that would only play
> with a certain program.  Thanks for the tip on ffmpeg.
>
> Mike
>
>
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