Serpentine is an application that lets you master (create) audio CDs.
* Supports many file formats such as WAV, MP3, OGG, and FLAC
* Supports PLS, M3U and XSPF playlists
* Can extract the audio track from video files
* Supports drag and drop: files can be dropped from Rhythmbox, Nautilus, etc.
Warning: This download & install link includes non-free software. You can decline to install the non-free software portions. If you do you will not get support for the Mp3 format.