K3b (from KDE Burn Baby Burn) is a CD and DVD authoring application for the KDE desktop environment for Unix-like computer operating systems. It provides a graphical user interface to perform most CD/DVD burning tasks like creating an Audio CD from a set of audio files or copying a CD/DVD, as well as more advanced tasks such as burning eMoviX CD/DVDs. It can also perform direct disc-to-disc copies. The program has many default settings which can be customized by more experienced users. The actual disc recording in K3b is done by the command line utilities cdrecord or wodim, cdrdao, and growisofs. As of version 1.0, K3b features a built-in DVD ripper.
K3b was voted LinuxQuestions.org's Multimedia Utility of the Year (2006) by the majority (70%) of voters.
As is the case with most KDE applications, K3b is written in the C++ programming language and uses the Qt GUI toolkit. Released under the GNU General Public License, K3b is free software.