My drives are labeled EXTERNAL## and the root directories are numbered EXT##. I did a device scan on EXT15 and it didn't find the new movie I had added as it already existed as added from EXT05. I verified that it was on EXT15 and checked the EMM database and discovered that it was already there as stored on EXT05 so it didn't import it. I use the duplicate filter a lot as I import a full hard drive of movies and them use the filters to delete duplicates. I caught this one but I wonder how many others it doesn't import?