Converts the audio of the audio or video files given at input, normalizes the audio's volume (so that they all present the same maximum volume), and converts the resultant audio to mp3. The resultant file can have its metadata edited (ID3 tags) at will. This version of the application is portable - it can be run from a pen drive but it does not create any shortcuts. The installable version of the app is easier to setup, because it creates shortcuts.