This application not only looks very sleek but also comes with way more features than I was expecting. Such as:
Data cds
Audio cds
Video CDs (VCD 1.1, 2.0, SVCD)
Mixed-mode CDs
eMovix CDs
DVD burning (Support for DVD-R(W) and DVD+R(W), data DVD, eMovix DVDs, DVD-RWs and DVD+RWs formatting)
CD Ripping (with CDDB and CD-TEXT, no SCSI emulation for ATAPI drives)
DVD Ripping and DivX/XviD encoding
Save/load projects.
Blanking of CDR-Ws.
Retrieving Table of contents and cdr information.
Writing existing iso images to CD or DVD with optional verification of the written data.
Writing cue/bin files created for CDRWIN
CD Copy.
CD Cloning for perfect CD copies
DVD copy (no video transcoding yet)

Sources and tons of RPMs available at http://k3b.sourceforge.net