Are you using Beta Labels in your blogs?
I am using labels a lot, and as I add labels, I notice that my  mirroring
takes longer each time.  And when I look at the links being displayed during
the mirroring, that's what I see.  Links related to the labels.

My last mirror took 14 HOURS and used up 3.7G of disk space.  The one I just
started will possibly be longer and bigger.

We need a systems person to try and figure out what is going on.  I don't
think Blogger will help.