Pretty good but did not work well for me. I was burning mustic for my wife's dance school recital and she wanted a 2-second pause between tracks. K3b clipped off the last 2 seconds of the music on each track! Could not find a fix for this. I ended up using xfburn and she put in the silence "manually" with Wavepad on her Mac. (Why not use ExpressBurn or iTunes on the Mac? Well, we tried it and those CDs ended up with a strange "fuzz" when played on the studio sound system. CDs burned with xfburn on my laptop did not have this. Yup, pretty strange. )