DMCA Settlement letter from Video Protection Alliance Services, LLC

["Mayne, Jim" <j.mayne () TCU EDU>]

We recently received a DMCA settlement letter from 


Video Protection Alliance Services, LLC
PO Box 322
Cream Ridge, NJ 08514-0322
United States
+1-866-251-2631

Has anyone else received something from this group? We actually received letters with two different from addresses, one 
'copyright () videoprotectionalliance com' and one 'copyright () getamnesty com'. 

They have a professional web site with a ssl certificate issued by Verisign but how can one really tell a legitimate 
letter from a scam? How do you know they are really acting on behalf of a legitimate copyright holder? 

Jim