Comment 6 for bug 576500

I get exactly the same problem. I burn an audio cd, the burn process completes but i have to 'force quit' to close k3b. I am running Ubuntu Lucid (64 bit version). Although Brasero is pre-installed in Ubuntu, I have had so much trouble using it, that I use K3b in preference.

As Antonio reported, It was working ok on 9.10 before the upgrade.