I've always had trouble upgrading to the newer versions of photopost because we've hacked up the code so much. We started out using the perl version many years ago on a Windows platform (ugh).
We archive DVD & Blu-Ray covers, and many custom replacement covers for dvd/blu-ray. Loads of talented artists are involved in this hobby of replacement art. Most of the time the replacement covers are better than the originals. I use it for my own collection and do some of my own as well.
Blu-Ray Covers, DVD Covers, Game Covers - DVD Cover Art