Digital preservation guidance notes provide advice on specific topics related to the preservation and management of electronic records. They are written for anyone involved in the creation of electronic records which may need to be preserved over the long term, and those responsible for preservation.
Selecting file formats
Advice for creators and managers of electronic records when selecting file formats for use.
Guidance on selecting file formats (PDF, 0.11 MB)
Selecting storage media
Advice for creators and managers of electronic records when selecting physical storage media for long-term preservation.
Guidance on selecting storage media (PDF, 0.08 MB)
Care, handling and storage of removable media
Electronic storage media are susceptible to damage through mishandling or inappropriate storage conditions. This guidance note provides advice on the care, handling and storage of removable storage media.
Guidance on care, handling and storage of removable media (PDF, 0.10 MB)
Graphic file formats
Advice for creators and managers of electronic records when selecting file formats for use with images.
Guidance on graphic file formats (PDF, 0.00 MB)
An outline of the standards and requirements for the digitisation of analogue records for The National Archives.
Digitisation at The National Archives (PDF, 0.45 MB)
DROID automatic format identification documentation (including XML schemas)
This technical report describes an identification method developed by The National Archives, which uses automated analysis of the binary structure of a digital object, and comparison with predefined internal and external ‘signatures’ for specific formats. The report can be accessed here: DROID automatic format identification documentation
PRONOM Technical Registry Unique Identifiers
The PRONOM Unique Identifier (PUID) is an extensible scheme for providing persistent, unique and unambiguous identifiers for file formats.