[GeoffR]

A utility program that would go through the images directory and delete every cover not associated with a book on the device would be very useful.

I have 495 books on my Glo, including about 100 kepubs. But when I checked I found over 5500 files in the images directory. It doesn't seem to have had any bad effects yet, but I'm sure it would eventually. So I'm now gradually going through and manually deleting the covers I don't recognise.

Edit: Now I think about it, if there is a SQL command that can list the base file name of every image associated with a book on the device, then it would be easy to delete all the ones not in that list using ordinary unix shell commands.