The most recent Neal-Schuman catalogue contains four books that are focused on digital assets.
Introduction to Digital Libraries by G.G. Chowdhury and Sudatta Chowdhury, published in 2002 ($85.00). The catalogue states that, "This holistic view of the global digital library scene covers: the nature and growth of digital libraries, the technological infrastructure, digital library collections, digitization and document management, organization of digital information..."
Cataloging and Organizing Digital Resources: A How-to-do-it Manual for Libraries by Anne M. Mitchell and Brian E. Surratt, published in 2005 ($75.00). The catalogue blurb states that, "This timely manual shows how to best integrate online resources into traditional workflows...Coverage tackles problematic areas such as copyright considerations, Dublin Core metadata creation, user interface design, access control, hardware and software selection and more."
Digitizing Collections: Strategic Issues for the Information Manager by Lorna Hughes, published in 2004 ($85.00). "This invaluable handbook discusses all the strategic and practical issues libraries consider when making the decision to digitize collections."
Preserving Digital Information: A How-to-do-it Manual by Gregory S. Hunter, published in 2000 ($65.00). "Here are the 'best practices' recommended by professional associations and experts in preserving information in electronic format."