Vehicular entertainment systems where devices in the systems can each utilize a common type of storage units are presented. A vehicular entertainment system can include a media server head unit in communication over a network with a plurality of media players that are installed about the cabin of a vehicle. Media content can be stored on a plurality of field replaceable storage units where each of the storage units can be installed in any one of the players or the server. Each of the storage units can store a substantially identical content set including passenger content, player content, server content, crew content, or other types of content. The server or players can be restricted from accessing content to which they lack rights, possibly based on a location identifier that indicates roles or responsibilities of the players at their installed location.