Adding mp3 files to the CD library is very easy. Just drag-and-drop the files from Explorer into the CD Library window or hit the MP3 icon in the CD Library toolbar. MP3 files can be on your PC, a LAN, or on the internet via a URL. Here are some examples of correct MP3 file location syntax:
Initially the library entry will have the title of the file as its name. You should edit this to create an appropriate name. Once you have a valid (Artist / Title) CDDB name, you will able look up lyrics just like regular CDDB CDs.