Useful if you need to rename a large number of files in a directory accordingly to their ID3 description.
Do you have loads of MP3 files in a directory and need to write a single common piece of information into them (e.g. the interpret or the album name)? You can type it in there manually, but this won’t make you very cheerful if the amount of files is large. Using ID3 renamer, everything is a matter of a few mouse clicks.