/usr/lib/pyshared/python2.6/kaa/metadata/disc/_cdrom.so is in python-kaa-metadata 0.7.7+svn4596-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pyshared/python2.6/kaa/metadata/disc/../../../../../python2.6/dist-packages/kaa/metadata/disc/_cdrom.so