UPnP/DLNA vs UPnP/DLNA in LMS?

In LMS Plugins, what's the difference between UPnP/DLNA Media Interface by Andy Grundman and UPnP/DLNA bridge by Phillipe? I read the documentation provided by Phillipe. So, both provide UPnP/DLNA services? One "better" than another? Any reasons to install/run both?

Thanks!