Hello,
I tried last night to burn an mp3 to audio cd using Xfburn, it gave errors and would not begin this task, based upon the errors stating something was missing from gstreamer I had a look in Synaptic and tried various gstreamer plugins for Xfburn, eventually I found the correct ones so I was able to complete the task.
As there are several gstreamer files, I thought I would make this thread in case anyone else wanted to do this task, so it saves you having to do a trial and error testings.
In Synaptic these are the things you need to install -
gstreamer0.10-plugins-good (0.10.31-3+nmu1ubuntu5)
gstreamer0.10-x (0.10.36-1.1ubuntu2)
When you select the first item it will automatically tick the second item.
The errors now cease and Xfburn will accept your mp3's to burn as audio cds.