Publications with embedded media content often require that these files are compressed, streamed or otherwise optimized for delivery and access. When possible, acquire and retain copies of the original, high resolution, media files for the purpose of long-term preservation. Formats for preservation should be open, non-proprietary or widely adopted. Higher quality uncompressed versions of media files are preferred for inclusion in an archival package.
Where there is a choice of which file format to use, consider this guideline:
11. Use non-proprietary, broadly supported and adopted open file formats