MP3SplitJoin will split mp3 and mp3pro files into smaller more managable files. You can join mp3 and mp3pro files of different sample quality. ex: Join an mp3 (CD quality 128kbps) to an mp3 (FM quality 64kbps) and lose no quality and gain no size in files. Join an mp3 to an mp3pro without loss in quality or gain in size. Comes with integrated winhelp files.
Software that can be used as an alternative to MP3SplitJoin: