The Guidelines for a long-term preservation strategy for digital reproductions and metadata explains how to preserve digital materials such as text, images and video. It gives a theoretical introduction to the subject of picking the right strategy, as well as practical examples of how to manage a collection of digitised and born-digital artworks. The focus of Best practices for a digital storage infrastructure is on bit preservation, meaning the physical storage of the data and how institutes and companies of today store their collections of data. It gives an overview of storage media types and systems available for making a good storage infrastructure. Each storage type is explained in terms of their properties and what advantages and risks the system gives in the view of long time preservation.