/usr/lib/x86_64-linux-gnu/libdvdnavmini.so.4 is in libdvdnav4 4.2.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libdvdnavmini.so.4.1.2
/usr/lib/x86_64-linux-gnu/libdvdnavmini.so.4.1.2