note that if they are sending JPG's it's usually best just to send
each JPG file "as is" because, as a general rule, you rarely
achieve much notable compression by archiving JPGs anyway. Often
I find that the archives overheads actually increases the file size
RAR seems to be quite smart and I've seen it shave several gigs off
archived video footage that was already MPEG compressed.
I can concur on that for video... so many frames being compressed if
your saving a few bits off of tens or hundreds of thousands of
frames it certainly adds up but usually I find that single, or a
small amount, of compressed JPEG images usually goes the other way.
With say (to use an example I was recently working on ) a batch of 10
200KB'ish JPG pictures with medium image compression when
compressed using even RAR came out with a saving of only around
200KB as a batch and actually added about 24KB+ each when archived
individually.
Have fun,
Shay
--
=========================== Shay Telfer ================================
Perth, Western Australia Technomancer Join Team Sungroper in the
Opinions for hire [POQ] 2005 World Solar Challenge
http://public.xdi.org/=Shay fnord <http://sungroper.asn.au/>
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