1. According to BSA and IDC, the worldwide software piracy rate is at 35 per cent, which means that “for every two dollars' worth of PC software purchased legally, one dollar's worth was obtained illegally” (quote BSA IDC, p. 1).
2. Association of American Publishers inc. (2001) ‘Digital rights management for ebooks: publishers requirements version 1.0. [e-book]’, (Cited 23 July 2007). Available from. http://publishers.org/digital/drm.pdf.
3. Bradbury, D. (2007) ‘Decoding digital rights management’, Computers and Security, Vol. 26, pp. 31–33.
4. Fetscherin, M. (2006) ‘Digital rights management: What the consumer wants’, Journal of Digital Asset Management, Vol. 2, No. 3, pp. 143–149.
5. Williamson, O. E. (1985) The Economic Institutions of Capitalism: Firms, Markets, Relational Contracting. Free Press, New York.