In one embodiment, a holographic data storage medium includes a substrate, a holographic recording material, and an optically detectable tracking pattern on the medium. The best such layout depends upon the content present, the creator’s intent, the output device, and the viewer’s interests. The panel connectors form a corner between the two side panels so that those side panels having a predetermined angle therebetween. , using a URL scheme that is native to the computer to forward the non-native transport. The personal device management system is arranged to control allocation of one or more components of a communication service with the individual client device elements via the second communication interface.