My apologies Sebastien, I assigned this to Totem, as it wasn't assigned to anything, and the user stated it only happens with Totem.
Jamie,
Have you tested the same video file with MPlayer or VLC? Also, the backtrace might capture something useful prior to the crash. And like Sebastien suggested, the xorg logs would be helpful as well.
My apologies Sebastien, I assigned this to Totem, as it wasn't assigned to anything, and the user stated it only happens with Totem.
Jamie,
Have you tested the same video file with MPlayer or VLC? Also, the backtrace might capture something useful prior to the crash. And like Sebastien suggested, the xorg logs would be helpful as well.