Braser hangs at end of burn

[Simon Rodan]

After burning the disk (CD or DVD), Brasero tried to eject the disk - and fails with this message:

Please eject the disc from "HL-DT-ST DVD-RAM GH22LP21" manually.
The disc could not be ejected though it needs to be removed for the current operation to continue.

Ejecting the disk does not cancel the message.

After ejecting the disk and clicking cancel this message appears:

Image successfully burned to DVD (or CD)
(progress bar)
Success

Clicking close appears to close the application. However it still appears as a running process, which prevents it being launched again (either with right click against a file or from Main menu -> Sound and Video - Brasero Disk Burner until the running instance has been ended or killed.

Other information
Release: 12.04
Package version: 3.4.1-0ubuntu1

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: brasero 3.4.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Sun Jul 29 13:55:53 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: brasero
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tom F (n411303)]

#578910
#904662
#549184
#661625

A Google of "The disc could not be ejected though it needs to be removed for the current operation to continue" reveals this bug has been around for a long time. I have been affected now for years by it. To avoid it I have tried using K3B instead but I get problems reusing K3B after close because it does not close properly I have to use system monitor to kill off all the K... activities. The best burner on Ubuntu for me has been Imgburn running under Wine. But it would be really nice if Brasero could be fixed.