> Hi Jinx,
>
> He means compression on the fly. Modems can compress files as they send
> them and transparently decompress on the other end. Try zipping one of the
> ones that went really fast and see if it zips much. Note that it is (I
> would guess) more reliable to zip a file first than to rely on the modem's
> compression.

        I wouldn't say it's more reliable, it is however much more efficient. The
on the fly compression modems do is quite good, but it's nothing compared to
something like zip. TTYL

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