> if anyone have an idea, some pointers, url, anything, it is welcomed
> in advance.
>
> Stephane

The backup might be large but you might be surprised how small the zip will
end up.
I agree that your users have had a "great idea" - it's quite silly to store
these image files in the gdb - they take up even more space inside the gdb
file than they do in the file system.

As for a better way to do it - a compression algorithm on-the-fly before
updating/inserting the record would do your storage no end of good. trouble
is I don't know of one but I would like to use it too if you find it.
Alan