Just curious as to why the Open Blocks radios don't work with the radio crystals. Whenever a radio crystal is inserted into a radio, the message "unknown stream type" appears in chat. As far as I know, these streams are client side, and hence don't have an impact on lag. Is this a bug or is there a reason that these streams don't work on the server?
I don't think the IP list for the streams bound to each crystal have been updated since the last version, so they may refer to streams that are no longer active.
You need to install a extra mod for it. Install NotEnoughCodecs (you get it from here: OpenMods or use our launcher which has it already installed.