No sub-directory added:
Put all the music files of the specified playlist directly in the target directory.

Add the last sub-directory defined in playlist:
Keep only the last sub-directory (ex: Album) of the music file pathname.

Add the last two sub-directory defined in playlist:
Keep only the last two sub-directory (ex: Artist\Album) of the music file pathname.

Remove the first sub-directory defined in playlist:
This option is useful to remove the first sub-directory when your playlists are make with absolute pathname.

Remove the first two sub-directory defined in playlist:
This option is useful to remove the first two sub-directory when your playlists are make with absolute pathname.