last output confirms the issue is caused by gstreamer. So switching package to gstreamer from rhythmbox
** Changed in: rhythmbox (Ubuntu) Sourcepackagename: rhythmbox => gstreamer0.10 -- Crash when adding files to library https://launchpad.net/bugs/36660 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
