Four computer scientists hired by Microsoft to present a paper at a DRM workshop are, at the end of their research, pessimistic about the eradication of file swapping.
Napster was defeated, goes one argument, because most of the data originated from few sources. As broadband becomes more widely accessible, however, the pool of participants will significantly increase, and their high number will defeat attempts to stop file-swapping.
The paper apparently also takes a dim view of the efficacy of available DRM systems.
BBC reports here.