I was having virtually the same problem--I was copying video files to my local drive over Samba, and it crashed when trying to create thumbnails for the (local) files.
** Attachment added: "The crash file that Gnome created." http://librarian.launchpad.net/5198778/_usr_bin_totem-video-thumbnailer.1000.crash -- totem-video-thumbnailer crash https://launchpad.net/bugs/71804 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
