I had this exact problem, all wmv files would crash in totem and vlc. I also had ffmpeg installed via jon-severinsson/ffmpeg. purging this and then updating to the official packages fixed the problem for me.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to totem in Ubuntu. https://bugs.launchpad.net/bugs/1376468 Title: Totem crashes attempting to play wmv file Status in “totem” package in Ubuntu: New Bug description: Totem segfaults when I attempt to open a wmv file. The same when Totem serves as video playback plugin in Firefox. I believe that this is some kind of dependency problem, because I have 2 additional Trusty machines, that do not experience the same problems. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: totem 3.10.1-1ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 CurrentDesktop: Unity Date: Thu Oct 2 00:32:27 2014 InstallationDate: Installed on 2012-05-13 (871 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: totem UpgradeStatus: Upgraded to trusty on 2014-04-27 (156 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/totem/+bug/1376468/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp