Kevin Jeffay is the S. Shepard Jones Professor of Computer Science at the University of North Carolina at Chapel Hill. He received his Ph.D. from the University of Washington in 1989. Professor Jeffay has published widely in the areas of multimedia networking, operating systems, and real-time systems and he currently serves as the editor-in-chief of the ACM/Springer-Verlag journal Multimedia Systems. He was the program cochair of ACM Multimedia '99 (with HongJiang Zhang), program chair of NOSSDAV 2000 (the International Workshop on Network and Operating Systems Support for Digital Audio and Video), and the 2000 IEEE Real-Time Systems Symposium.HongJiang Zhang obtained his Ph.D. in electrical engineering from the Technical University of Denmark in 1991. From 1992 to 1995, he was with the Institute of Systems Science at the National University of Singapore. In 1995 he joined Hewlett-Packard Laboratories, where he served as research manager. Currently he is a senior researcher and assistant managing director with Microsoft. Dr. Zhang has published more than 150 peer-reviewed research papers and book chapters and is a coauthor of Image and Video Processing in Multimedia Systems (Kluwer Academic Publishers). A member of the editorial boards for four international journals, a senior member of IEEE, and a member of ACM, Professor Zhang cochaired ACM Multimedia 99 and has served on the committees of over 40 other conferences on multimedia and image processing.