This module has been out for some time and has even been reviewed on this site here. As it is however, for block commenting, I find either the =pod / =cut POD syntax or the Acme::Comment module referenced by jryan above to be far more flexible - Also see the perl.com article on Acme::Comment here.

There has even been a thread specifically on this topic here.

 

perl -e 'print+unpack("N",pack("B32","00000000000000000000000111100101")),"\n"'