Preservation

Linked Open Data for Digital Video Formats

Digital moving images consist of bitmap digital images or “frames” displayed in rapid succession at a constant rate, giving the appearance of movement. Digital Video is an electronic representation of moving images in the form of encoded digital data. The information is made up of a sequence of data rather than as a continuous signal. Digital video is defined as a video stream that has been created as, or converted into, digital form encoded as numerical samples in continuous sequence. Each frame is comprised of a series of pixels with resolution determined by the relative number of pixels in a frame (SD, HD, UHD). Digital video formats are generally composed of both a wrapper format, usually the common name associated with the file extension, and an encoding method or codec.

The significant properties of digital video records are documented in the Digital Video Preservation Plan, which can be used as test criteria for tools and processes used in format transformations. 

NARA makes its Linked Open Data available in Resource Description Framework Terse RDF Triple Language or RDF Turtle (.ttl files). These files can be opened in any text editor. The Digital Preservation Framework as Linked Open Data includes the same elements as are available in the version of the Preservation Plans on GitHub.

These plans are not exhaustive nor universally applicable proposed actions and recommended or endorsed tools: these represent file formats and variant versions in NARA holdings, the current NARA risk assessment, processing capabilities, and tools in use at NARA.

 

 

Format Name File Extension(s) Digital Preservation Framework Category/Categories NARA Format ID NARA Linked Open Data TTL
Adobe Premiere Pro Project prproj Digital Video NF00818 https://www.archives.gov/files/lod/dpframework/id/NF00818.ttl
Advanced Systems Format unspecified version asf Digital Video|Digital Audio NF00109 https://www.archives.gov/files/lod/dpframework/id/NF00109.ttl
Apple Final Cut Pro Project fcp Digital Video NF00819 https://www.archives.gov/files/lod/dpframework/id/NF00819.ttl
Apple Video file m4v Digital Video NF00780 https://www.archives.gov/files/lod/dpframework/id/NF00780.ttl
Audio Video Interleave Format (AVI) avi Digital Video NF00117 https://www.archives.gov/files/lod/dpframework/id/NF00117.ttl
Beyond TV Transport Stream tp Digital Video NF00820 https://www.archives.gov/files/lod/dpframework/id/NF00820.ttl
Macromedia Flash 5 swf Digital Video|Software and Code|Web Records NF00580 https://www.archives.gov/files/lod/dpframework/id/NF00580.ttl
Macromedia Flash 6 swf Digital Video|Software and Code|Web Records NF00242 https://www.archives.gov/files/lod/dpframework/id/NF00242.ttl
Macromedia Flash 7 swf Digital Video|Software and Code|Web Records NF00243 https://www.archives.gov/files/lod/dpframework/id/NF00243.ttl
Macromedia Flash project fla Digital Video|Software and Code NF00727 https://www.archives.gov/files/lod/dpframework/id/NF00727.ttl
Macromedia Flash unspecified version swf Digital Video|Software and Code|Web Records NF00655 https://www.archives.gov/files/lod/dpframework/id/NF00655.ttl
Macromedia Flash Video flv|f4v Digital Video NF00193 https://www.archives.gov/files/lod/dpframework/id/NF00193.ttl
Material Exchange Format mxf Digital Video NF00245 https://www.archives.gov/files/lod/dpframework/id/NF00245.ttl
MPEG-1 Program Stream mpg|mpeg|mp1|mp2|mp3|m1v|m1a|m2a|mpa|mpv Digital Video NF00336 https://www.archives.gov/files/lod/dpframework/id/NF00336.ttl
MPEG-2 Program Stream m2p|mpg|mpeg Digital Video NF00778 https://www.archives.gov/files/lod/dpframework/id/NF00778.ttl
MPEG-2 Video mpg|mpeg|mpeg2|mpv|mp2t|mp1s|mp2p|x-mpg|x-pn-mpg|x-mpeg|x-mpeg2a Digital Video NF00337 https://www.archives.gov/files/lod/dpframework/id/NF00337.ttl
MPEG-4 Advanced Video Coding (H.264) mp4|mpa Digital Video NF00595 https://www.archives.gov/files/lod/dpframework/id/NF00595.ttl
MPEG-4 Media File mp4|mpa Digital Video NF00339 https://www.archives.gov/files/lod/dpframework/id/NF00339.ttl
QuickTime File Format (MOV) mov Digital Video NF00393 https://www.archives.gov/files/lod/dpframework/id/NF00393.ttl
RealMedia rm|rmf Digital Audio|Digital Video NF00396 https://www.archives.gov/files/lod/dpframework/id/NF00396.ttl
RealMedia metafile ram Digital Audio|Digital Video NF00397 https://www.archives.gov/files/lod/dpframework/id/NF00397.ttl
Sonic Scenarist Closed Caption Format scc Digital Video NF00709 https://www.archives.gov/files/lod/dpframework/id/NF00709.ttl
SubRip Video Subtitle srt Digital Video NF00723 https://www.archives.gov/files/lod/dpframework/id/NF00723.ttl
Synchronized Accessible Media Interchange smi|sami Digital Video NF00689 https://www.archives.gov/files/lod/dpframework/id/NF00689.ttl
Third Generation Partnership Project (3GPP) 3gp|3gpp Digital Video NF00101 https://www.archives.gov/files/lod/dpframework/id/NF00101.ttl
Video Object File vob Digital Video NF00437 https://www.archives.gov/files/lod/dpframework/id/NF00437.ttl
Windows Media Video with unspecified codec wmv Digital Video NF00766 https://www.archives.gov/files/lod/dpframework/id/NF00766.ttl
Windows Media Video with Windows Media Video 9 (VC-1) Codec wmv Digital Video NF00447 https://www.archives.gov/files/lod/dpframework/id/NF00447.ttl
Windows Media Video with Windows Media Video 9 Advanced Profile (WVC1) Codec wmv Digital Video NF00627 https://www.archives.gov/files/lod/dpframework/id/NF00627.ttl
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