Defoamer compositions which exhibit both high defoaming activity as well as good storage stability are prepared by mixing at least an organopolysiloxane having a defined but limited fraction of silicon-bonded hydroxyl andor alkoxy groups and hydrophilic silica, followed by heating until the viscosity of the mixture has fallen to less than 50% of its value prior to heating. The system and method solves the problems posed by multiple incompatible data rights management architectures. The image data arranged and synthesized in the format is converted into image data of a second data format. More specifically, in one embodiment, the mobile device provides the service metadata to a service discovery system.