Copying of files by the playlists of the ".m3u", ".pls" formats (also by any text files containing the list of files). You may switch on processing of ".mp3" only if you want. Copying of files with saving the structure of folders.
AVCWare iPod to iPod/Mac/iTunes Transfer freely transfers music/video/playlist/photos among iPod/iPhone, Mac and iTunes. If you own more than one iPod, it can simultaneously manage all iPods in the same interface by drag-and-drop.
Wave file combiner software combines two or more wav files. Wav merger joiner tool has the facility to join merge several wav files into a large file. Wav organizer is handy utility to design for combining multiple wave audio files into single file.