Digital libraries, or at least their digital collections, unfortunately also have brought their own problems and challenges in areas such as:[35] There are many large scale digitisation projects that perpetuate this problem.
User authentication for access to collections
Copyright
Digital preservation (see above)
Equity of access (see digital divide)
Interface design
Interoperability between systems and software
Information organization
Inefficient or non existent taxomomy practices (especially with historical material)
Training and development
Quality of Metadata
Some digital libraries acquire a license to lend their resources. This may involve the
restriction of lending out only one copy at a time for each license, and applying a system of
digital rights management for this purpose (see also above).