[Geremia]

I made some metadata (title, author, etc.) changes in Calibre to some books, and I re-added those books to my Nook to update the metadata for those books on my Nook, thinking Calibre would delete the file corresponding to the old metadata/filename/etc. and replace it with the new, but now my device has two files, corresponding to the old and new metadata. It seems the files corresponding to the old metadata have been orphaned. Is that true? Can Calibre delete these orphaned, old-metadata files? thanks