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.
Append user-entered text to beginning or ending of selected tag of each selected track
Display, create text file listing info of dead tracks
Remove iTunes tracks disassociated from files
Perform search-and-replace on text in your choice of tags
Renumber order of selected tracks
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags