"Refreshing Your Media" is stuck

If you want to tinker some, yet, try reformatting the Clip under its Settings–that should clear everything up to a new, blank slate.  Refreshing generally should not take as long as it’s been taking for you–with a 32GB microSD card installed on an 8GB Clip, my refreshing takes less than 30 minutes (which, of course, still is ridiculous–there should be no refreshing “stall” at all).  And, of course, if you install the alternate Rockbox firmware (available at rockbox.org), there’s no refreshing downtime whatsoever.