/var/lib/vdr/plugins/xine/noSignal4x3.mpg is in vdr-plugin-xine 0.9.4-12.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/vdr-plugin-xine/noSignal4x3.mpg
/usr/share/vdr-plugin-xine/noSignal4x3.mpg