The presentation relates to the main topic of the block How to Protect Your Memory? (Culture in the Digital Age). Protection of the unique cultural heritage is important for every independent nation in developed Europe. Protection evokes rather preventive approach of security of this cultural heritage. The lecture on topic “Preservation of the Cultural Heritage in the Czech Republic“ shall show what it can be like when the significance of data keeping in digital form as well as their preservation and protection for further generations is underestimated.