Brasero does not accept .mp3 files

Do you have gstreamer installed?According to http://projects.gnome.org/brasero/index.html#about brasero can burn mp3 as audio files.I always burn it as data project because that way I can burn more files.

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I get the same error on Ubuntu 10.04 LTS with Brasero 2.30.2. The system was installed just a few days ago from scratch.

I do have gstreamer installed:

dpkg -l|grep gstreamer
ii bluez-gstreamer 4.60-0ubuntu8 Bluetooth GStreamer support
ii gstreamer0.10-alsa 0.10.28-1 GStreamer plugin for ALSA
ii gstreamer0.10-ffmpeg 0.10.10-1 FFmpeg plugin for GStreamer
ii gstreamer0.10-gnonlin 0.10.15-1 non-linear editing module for GStreamer
ii gstreamer0.10-nice 0.0.10-2build1 ICE library (GStreamer plugin)
ii gstreamer0.10-plugins-bad 0.10.18-1ubuntu1 GStreamer plugins from the "bad" set
ii gstreamer0.10-plugins-base 0.10.28-1 GStreamer plugins from the "base" set
ii gstreamer0.10-plugins-base-apps 0.10.28-1 GStreamer helper programs from the "base" se
ii gstreamer0.10-plugins-good 0.10.21-1ubuntu3 GStreamer plugins from the "good" set
ii gstreamer0.10-pulseaudio 0.10.21-1ubuntu3 GStreamer plugin for PulseAudio
ii gstreamer0.10-tools 0.10.28-1 Tools for use with GStreamer
ii gstreamer0.10-x 0.10.28-1 GStreamer plugins for X11 and Pango
ii libgstreamer-plugins-base0.10-0 0.10.28-1 GStreamer libraries from the "base" set
ii libgstreamer0.10-0 0.10.28-1 Core GStreamer libraries and elements

Maybe something different is needed?

I also have this problem.
I am using Brasero 3.6.0 and Ubuntu 12.10.
I also have GStreamer installed.