And just to clarify, "offers encryption" means it's optional. The sender can require HDCP if it wishes, but it can also transmit plain unencrypted data. Some devices will work either way, but restrict what they do without HDCP. (For example, iTunes on a Mac won't play DRM'd videos if a non-HDCP connection is present.) Presumably whatever this guy is using for his video source doesn't require HDCP.