Hyper-Proxy: A High Quality Streaming Media Delivery System in Internet Xiaodong Zhang Department of Computer Science College of William a nd Mary Abstract The proliferation of streaming media contents and its high demand from end users challenge the existing client-proxy-server Internet systems in two ways. First, media objects are generally very large. To fully cache several media objects can easily exhaust the proxy cache space. Second, the media delivery has rigorous real-time constraints. Clients who request the streaming media objects always demand a small startup delay and jitter-free playback. Unfortunately, the conventional proxy caching system does not work well for streaming media objects. Addressing these challenges, we have designed and implemented a system called Hyper-Proxy to deliver high quality streaming media objects in Internet. In this talk, I will give an overview of this project: (1) an effective design model for streaming media delivery systems by analyzing two pairs of conflicting performance objectives, which have not been addressed by any existing systems, (2) the design of a streaming delivery system, Hyper-Proxy, which is guided by our design model, (3) the implementation of the Hyper-Proxy system, and (4) current status and future work of this project. This research has been jointly done with the Mobile and Media Systems Lab at the Hewlett Packard Labs. Other principal participants of this project are Songqing Chen (William and Mary), Bo Shen and Susie Wee (HP Labs).