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Two main technologies have appeared,that are changing the relationship of humans with information.One is the digitisation of radio/television enabled by the MPEG-2 standard, and the other the infrastructure-independent networking capabilities made possible by the Intet.The two technologies,however,are largely complementary and,in spite of many efforts to favour a convergence,still largely antithetic.In October 1998,MPEG-4，a new standard of the MPEG family,will be released by the MPEG Committee. The standard has been designed to provide support to the radio/television and Intet paradigms, and is therefore poised to become the enabling technology for their convergence.