(brasero:11454): CRITICAL **: gst_ffmpeg_cfg_set_property: assertion 'qdata->size == sizeof (gint64)' failed

[jimav]

brasero /path/to/dvdimage.iso

...burns the disk okay but emits the following on the terminal:

** (brasero:11454): CRITICAL **: gst_ffmpeg_cfg_set_property: assertion 'qdata->size == sizeof (gint64)' failed
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: brasero 3.12.1-1ubuntu3~16.04
ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
Uname: Linux 4.4.0-62-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jan 19 23:48:55 2017
InstallationDate: Installed on 2013-08-06 (1263 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: brasero
UpgradeStatus: Upgraded to xenial on 2016-05-11 (254 days ago)