Digital preservation is a critical process for ensuring long-term access to digital resources in an era of rapid technological change. This study paper explores the primary techniques and tools used in digital preservation, including migration, emulation, encapsulation, and bit-level preservation. It examines open-source and commercial tools such as DSpace, Eprints, Greenstone, alongside case studies of Dspace application. The paper also addresses challenges like technological obsolescence, resource constraints, and metadata management. The findings underscore the importance of proactive strategies, robust policies, and interdisciplinary collaboration to safeguard digital heritage. Keyword: E-resources, digital preservation, digital library, DSpace, Eprint, Geenstone
Patil et al. (Thu,) studied this question.