because they are in fact empty files.
The other man pages installed by the port are generated from
perl sources and are proper man pages. But these two programs
are written in C, so man page generation fails for them.
ok ajacoutot@
dvd::rip is a full featured DVD copy program written in
Perl. It provides an easy to use but feature-rich Gtk+
GUI to control almost all aspects of the ripping and
transcoding process. It uses the widely known video
processing swissknife transcode and many other
Open Source tools.
from Waldemar Brodkorb <wbx at openbsd.de>