Drag-and-drop a single folder containing media files on this droplet (or double-click it to select a folder via an open dialog); it will add each file to iTunes and then distribute the tracks to playlists named using your choice of the tracks' "Artist - Album" tags or the name(s) of the folder(s) containing the file.
OS X 10.6 or later only. Previous universal version available at the link below in the "Info" section.
Options are displayed after dropping a folder of files on the droplet.
List tracks not assigned to playlists
Make a text file listing Albums that have some/no tracks with artwork
Renumber order of selected tracks
Convert Roman numerals in selected tracks' name to upper case
Convert selected tracks and export the converted files to a new folder
Append user-entered text to beginning or ending of selected tag of each selected track