It\'s pretty straightforward to query out the guts of a DNS-SD entry via dig by asking your nameserver directly; but for multicast DNS, I\'m not sure where to look.
% dns-sd -B _afpovertcp._tcp
Browsing for _afpovertcp._tcp
Timestamp A/R Flags if Domain Service Type Instance Name
20:02:23.350 Add 2 4 local. _afpovertcp._tcp. myhost