Strictly, Media Servers are hardware and software which can be remote controlled by Titan. But then, the Media Servers listed here are usually controlled like any other intelligent fixture via DMX/Art-Net/sACN: you patch them and set their attributes. Hence, this is only a list of media servers and media control software which are available to standard control mechanisms. Most of those have various control inputs, i.e. react to Art-Net, MIDI and timecode. Details are avilable in the respective manual.