Yep, gst-plugins-good from the PPA fixes it for me.
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DVD video playback pauses after ~1s, audio continues
https://bugs.launchpad.net/bugs/522901
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desktop-bugs
Same problem here. The culprit seems to be gstautoconvert.
(totem:8473): GLib-GObject-WARNING **: IA__g_object_set_valist: object
class `GstAutoConvert' has no property named `initial-identity'
The original gstautoconvert version lives in gst-plugins-bad. But it's
not included in the Ubuntu deb.