Brasero – Whole system freezes after displaying 'done'

[Thibaut Brandscheid]

brasero: 3.4.1
ubuntu: Ubuntu 12.04.1 LTS 64-Bit up-to-date

What you expected to happen:
I expect that it is possible to burn easily an ISO to an CD using Ubuntu's default CD burning program.

What happened instead:
After selection 'Burn image' and choosing an ISO file I started the burn process by clicking on 'Create Image'. After the progress bar arrived at the end, Brasero tried to generate an image checksum, this took quite long (2 min) and was maybe abort by Brasero (didn't saw the progress bar arrive at the end). Then Brasero displayed a 'done' label on the lower right corner button. Here the trouble begun.
The whole system friezed! I couldn't even open a shell pressing CTRL+ALT+F1 (took some pictures with my mobile of the error messages). After some time I got a terminal in Unity and tried to execute 'ubuntu-bug brasero' with no luck. Shutting down the computer wasn't possible neither, the pc just stopped on the shutdown screen (image attached).

After some time I pressed the little hardware-reboot button to reboot the PC. The system was still broken and displayed after the initial boot screen this message:
“Loading Operating System …
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER”

To finally being able to start the PC I had to power it off!

Brasero never really worked for me – but I give it a try from version to version to see if it works – it never has (since years).

It seemed to me like the file system got mounted read only after the freeze appeared. I hope that all the information provided can help to find this bug.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: brasero 3.4.1-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: amd64
Date: Sun Dec 23 16:06:09 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
SourcePackage: brasero
UpgradeStatus: No upgrade log present (probably fresh install)