He holds a PhD in computer science from the University of Canterbury, New Zealand where he studied the problem of optical music recognition as a Commonwealth Scholar. Since moving to Waikato, he has continued to broaden his interest in digital media, while retaining a particular emphasis on music. He is an active member of the Greenstone Digital Library project (www.greenstone.org), and through this work has collaborated with several United Nations Agencies, the BBC, and various public and national libraries. He has published in the areas of image processing, music information retrieval, digital libraries, data compression, and text mining. He is co-author of the book, How to Build a Digital Library , and twice has been the recipient of the best paper award at the premier U.S. conference on digital libraries.