We are using JWPlayer and the newest version of Wowza server. We have successfully configured multi-bit-rate using an SMIL and the /jwplayer.rss method.
wow, were we stumped for a while not knowing the instance name was required, in our case _definst_, but we eventually figured that out too.
Our final hurdle is that we cannot get a preview image to display, and I think it's because of the jwplayer.rss media RSS that is being read into the player doesn't have the <media:thumbnail url="" /> node configured.
Is there any way to configure the SMIL file so that this node is added to the xml <item> for each ABR stream?