If mp3tag for some reason fails do save tag data to a media file, a temporary copy of the media file is left and not deleted.
- run mp3tag in a given directory
- open a media file in this directory with a second application, f.e. winamp or ultraedit
- change the tag data of the file
- when attempting to save the tag data, a modal dialog will popup informing you that the file cannot be opened for writing
- choose ok and open the directory in the browser