Abstract: Problems of digital obsolescence due to obsolescence of computers, software and data mediums are presented in this article. Librarians and archivists are mostly concerned because of the “digital dark age” phenomenon, and they are looking for more efficient solutions to preserve cultural and intellectual heritage in digital form in order to decrease expenses and prevent time wasting. Further in the article, disadvantages of some computer platforms and methods of temporary data revival are shown, but for now no efficient standardized and long-term strategy, which could be applied to all types of digital resources, has been established. Many examples of computer, format, program and medium obsolescence that are listed, should awake everyone’s consciousness no matter what their professional occupation is, because contemporary business and social life can’t be imagined without computer technology which makes communication easier and faster, but it can also disable and interrupt all connections with future generations.