/usr/lib/x86_64-linux-gnu/libmediascanner-2.0.so is in libmediascanner-2.0-dev 0.100+14.04.20140403-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libmediascanner-2.0.so.0