Berthier Ribeiro-Neto reveived his Ph.D. in Computer Science from the University of California, Los Angeles in 1995. He is involved with various research projects financed by Braziliam agencies; the two main projects deal with wireless information systems and video on demand. He has chaired distinguished conferences in South America and is a member of ACM, IEEE and ASIS. He is currently an associate professor at the Computer Science Department of the Federal University of Minas Gerais in Belo Horizonte, Brazil.