These functions could work at different modes. Firstly, the its main purpose is to select the path for the search of mp3 files. Secondly, this path string must be right when you use copying/renaming/sorting capabilities of our program.

Other Topics
Can I distribute this software freely?
Can I edit mp3 files in ZIP, RAR archives or in ISO, BIN, NRG images?
My VideoCD player supports mp3. How must I rename mp3?
Is it possible that after working with mp3 using Mp3 ID3v1v2 Tag Edit & Sort Tool my files will be corrupted?