X-CD-Roast is a flexible frontend for optical disc authoring. It combines command line tools like "cdrecord", "cdda2wav", "readcd" and "mkisofs" into a nice GTK based graphical user interface.
Transform audio files between any format quickly and easily with AudioTransform.
AudioTransform is a GTK+ based frontend for many already existing and popular audio conversion tools such as sox, lame, bladeenc, cdparanoia, cdda2wav and others.