The author just found a bug with 5.15 and released another update...
Fix: PORTNAME= dvd+rw-tools
MASTER_SITES= http://www.pkix.net/mirror/fy.chalmers.se/ \
Committed, thanks! BTW the patch to Makefile haven't applied
cleanly, I applied it by hand. Looks like your mailer wrapped
lines. Please be more careful next time.