Ubuntu (Hardy Heron) freezes while playing MP3
by Steve Hernandez on Dec.03, 2008, under Technology
I believe this to be caused by a recent update to the GStreamer plugins and codecs for MP3.
To solve this problem, I had to completely remove (using Synaptic) Totem, MusicPlayer and GStreamer, reboot, and reinstall Totem. Then open an MP3 and it’ll ask to install the GStreamer codecs.
Next time you run updates, make sure you deselect those dealing with audio.