In order to design a "utility-aware'' streaming media service which automatically requests the necessary resources from Utility Data Center infrastructure, several classic performance questions should be answered: how to measure the basic capacity of a streaming media server? what is the set of basic benchmarks exposing the performance limits and main bottlenecks of a media server? In this paper, we propose a set of benchmarks for measuring the basic capacities of streaming media systems for different expected workloads, and demonstrate the results using an experimental testbed. Notes: Copyright ACM Published in the 10th Annual ACM International Conference on Multimedia, 1-6 December 2002, Juan Les Pines, France 5 Pages