>
> JPG 85 setting achieved a file 25% of the size of the original (75%
> savings)
> This setting produces essentially no degradation in quality for all
> but the very very very most discerning uses.
> I feel that eg wedding photos compressed at this level would be
> essentially as good as originals and produce eg A4/8"x10" prints
> entirely acceptably.

Have you looked at jpeg2000 or similar for compression? I don't know how 
well it will go re-compressing already compressed images but its hype 
seems to indicate its the "next big thing" and the sample pictures 
floating about aren't too bad.
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