I just uploaded my media integrity checking script into the software section. It can automatically create and verify par2 files in nested directories of files. I use it to make sure that my mp3s don’t get corrupted, and that some errant program (iTunes for example) doesn’t mess with my tagging. I have been using it for a few days and it works well. I will probably add some kind of logging to file so that I can schedule it to run after my nightly backups.