English translation can be found here.


Dette er en liste over filformatene som er foretrukket av Nasjonalbiblioteket for digital bevaring. Anbefalingene er utarbeidet av de respektive fagseksjonene, mens lista forvaltes av teamet for digital bevaring.

Lista omfatter både formater Nasjonalbiblioteket produserer selv og formater Nasjonalbiblioteket mottar fra andre. Formatene på lista er de som er anbefalt for bevaring av fagressurser i Nasjonalbiblioteket. De foretrukne formatene er det vi helst vil ha, mens de akseptable også vil bli godtatt uten konvertering/normalisering. Alle andre formater må diskuteres med relevante fagseksjoner, før de eventuelt blir akseptert går inn i forvaltningen.

Lista er inspirert av Open Preservation Foundations (OPF) liste “International Comparison of Recommended File Formats” og Library of Congress sine oversikter “Sustainability of Digital Formats: Planning for Library of Congress Collections” og “Recommended Formats Statement”.


Bilder

Formål
Foretrukne formaterAkseptable formater
Bevaring av digitaliserte bilder
  • TIFF (Tagged Image File Format), revision 6 1
  • Bevaring av plakater
  • PDF/A Family, PDF for Long-term Preservation 2
  • PDF (Portable Document Format) Family 3
  • Tilgangskopier
  • JPEG 2000 Part 2 (Extensions) jpf (jpx) 4
  • Levende bilder

    Formål
    Foretrukne formaterAkseptable formater
    Filmmastere og filmdigitalisering
  • Matroska/FFV1/PCM (Matroska File Format with FFV1 video encoding) 5
  • DPX (Digital Moving-Picture Exchange), Version 2.0 6
  • TIFF sequence 1
  • MPEG-4, Advanced Video Coding (Part 10) (H.264)/PCM (lossless, ukomprimert mezzanin) 7
  • OpenEXR 8
  • Apple Prores4444/mov 9
  • DNxHR444
  • Apple ProRes 422 High Quality/mov 10
  • DNxHR HQX/HQ
  • Fjernsyn (master/sendemaster), VOD,hjemmevideo og tilgang
  • Interoperable Master Format (IMF) 11
  • MXF/XDCAM
  • MXF OP1a 12
  • MPEG-4, Advanced Video Coding (Part 10) (H.264) 7
  • MPEG-2 Video Encoding (H.262) 13 (50Mbit/s, bare Inter-frame-kodet)
  • Filmdistribusjon (kino)
  • DCP, Version 1.0 (Digital Cinema Initiative Distribution Package) 14 (ukryptert)
  • IMF (Interoperable Master Format) 11 (ukryptert)
  • Digitalisert video
  • Matroska/FFV1/PCM 5
  • Filmlyd (sluttmix/audiomaster)
  • BWF (Broadcast WAVE Audio File Format), Version 2 15
  • WAVE Audio File Format with LPCM audio 16
  • FLAC (Free Lossless Audio Codec), Version 1.1.2 17
  • Undertekster
  • SRT (SubRip Subtitle format) 18
  • PAC (Presentation Audio/Video Coding)
  • XML
  • Lyd

    Formål
    Foretrukne formaterAkseptable formater
    Mastere og lyddigitalisering
  • Minimum bitdybde: 16 bit
  • Anbefalt bitdybde: 24 bit
  • Minimum samplingsfrekvens: 44100 Hz
  • BWF (Broadcast WAVE Audio File Format), Version 2 15
  • WAVE Audio File Format with LPCM audio 16
  • MBWF/RF64 (Multichannel BWF) [EBU TECH 3306] 19
  • FLAC (Free Lossless Audio Codec), Version 1.1.2 17
  • AIFF LPCM (Audio Interchange File Format with LPCM Audio) 20
  • Distribusjons- og tilgangskopier
  • For opptak av tale: Minimum bitrate: 128 Kbps
  • For opptak av musikk: Minimum bitrate: 192 Kbps
  • AAC (.m4a/.mp4) 21
  • Nettarkiv

    Formål
    Foretrukne formaterAkseptable formater
    Netthøsting
  • WACZ (Web Archive Collection Zipped) 22
  • WARC (Web ARChive file format) 23
  • Tekst

    Formål
    Foretrukne formaterAkseptable formater
    Skannet tekst
  • JPEG 2000 Part 1 (Core) jp2 File 24
  • OCR
  • ALTO XML 25
  • Digital tekst
  • PDF/A Family, PDF for Long-term Preservation 2
  • EPUB (Electronic Publication) File Format Family 26
  • PDF (Portable Document Format) Family 3
  • Tilgangskopier
  • JPEG 2000 Part 2 (Extensions) jpf (jpx) 4
  • Forsidebilder
  • JPEG Image Encoding Family 27
  • PNG (Portable Network Graphics) 28

    1. Sustainability of digital formats: Planning for Library of Congress Collections. TIFF, Revision 6.0. (2023, June 21). https://www.loc.gov/preservation/digital/formats/fdd/fdd000022.shtml ↩︎ ↩︎

    2. Sustainability of digital formats: Planning for Library of Congress Collections. PDF/A Family, PDF for Long-term Preservation. (2020, December 31). https://www.loc.gov/preservation/digital/formats/fdd/fdd000318.shtml ↩︎ ↩︎

    3. Sustainability of digital formats: Planning for Library of Congress Collections. PDF (Portable Document Format) Family. (2023, August 29). https://www.loc.gov/preservation/digital/formats/fdd/fdd000030.shtml ↩︎ ↩︎

    4. Sustainability of digital formats: Planning for Library of Congress Collections. JPEG 2000 Part 2 (Extensions) jpf (jpx) File Format. (2022, November 22). https://www.loc.gov/preservation/digital/formats/fdd/fdd000154.shtml ↩︎ ↩︎

    5. Sustainability of digital formats: Planning for Library of Congress Collections. Matroska File Format with FFV1 video encoding. (2022, April 4). https://www.loc.gov/preservation/digital/formats/fdd/fdd000343.shtml ↩︎ ↩︎

    6. Sustainability of digital formats: Planning for Library of Congress Collections. Digital Moving-Picture Exchange (DPX), Version 2.0. (2016, December 13). https://www.loc.gov/preservation/digital/formats/fdd/fdd000178.shtml ↩︎

    7. Sustainability of digital formats: Planning for Library of Congress Collections. MPEG-4, Advanced Video Coding (Part 10) (H.264). (2011, December 5). https://www.loc.gov/preservation/digital/formats/fdd/fdd000081.shtml ↩︎ ↩︎

    8. Sustainability of digital formats: Planning for Library of Congress Collections. OpenEXR. (2023, May 12). https://www.loc.gov/preservation/digital/formats/fdd/fdd000583.shtml ↩︎

    9. Sustainability of digital formats: Planning for Library of Congress Collections. Apple ProRes 4444 Codec Family. (2020, December 11). https://www.loc.gov/preservation/digital/formats/fdd/fdd000527.shtml ↩︎

    10. Sustainability of digital formats: Planning for Library of Congress Collections. Apple ProRes 422 High Quality. (2020, November 17). https://www.loc.gov/preservation/digital/formats/fdd/fdd000403.shtml ↩︎

    11. Sustainability of digital formats: Planning for Library of Congress Collections. Interoperable Master Format (IMF). (2024, January 2). https://www.loc.gov/preservation/digital/formats/fdd/fdd000535.shtml ↩︎ ↩︎

    12. Sustainability of digital formats: Planning for Library of Congress Collections. MXF Operational Pattern 1a (OP1a). (2015, December 3). https://www.loc.gov/preservation/digital/formats/fdd/fdd000266.shtml ↩︎

    13. Sustainability of digital formats: Planning for Library of Congress Collections. MPEG-2 Video Encoding (H.262). (2011, December 1). https://www.loc.gov/preservation/digital/formats/fdd/fdd000028.shtml ↩︎

    14. Sustainability of digital formats: Planning for Library of Congress Collections. Digital Cinema Initiative Distribution Package (DCP), Version 1.0. (2022, April 11). https://www.loc.gov/preservation/digital/formats/fdd/fdd000200.shtml ↩︎

    15. Sustainability of digital formats: Planning for Library of Congress Collections. Broadcast WAVE Audio File Format, Version 2. (2024, April 23). https://www.loc.gov/preservation/digital/formats/fdd/fdd000357.shtml ↩︎ ↩︎

    16. Sustainability of digital formats: Planning for Library of Congress Collections. WAVE Audio File Format with LPCM audio. (2024, April 23). https://www.loc.gov/preservation/digital/formats/fdd/fdd000002.shtml ↩︎ ↩︎

    17. Sustainability of digital formats: Planning for Library of Congress Collections. FLAC (Free Lossless Audio Codec), Version 1.1.2. (2015, December 21). https://www.loc.gov/preservation/digital/formats/fdd/fdd000198.shtml ↩︎ ↩︎

    18. Sustainability of digital formats: Planning for Library of Congress Collections. SubRip Subtitle format (SRT). (2023, March 28). https://www.loc.gov/preservation/digital/formats/fdd/fdd000569.shtml ↩︎

    19. MBWF / RF64: An extended file format for audio (EBU TECH 3306). (n.d.). https://tech.ebu.ch/docs/tech/tech3306v1_1.pdf ↩︎

    20. Sustainability of digital formats: Planning for Library of Congress Collections. AIFF File Format with LPCM Audio. (2010, June 28). https://www.loc.gov/preservation/digital/formats/fdd/fdd000116.shtml ↩︎

    21. Sustainability of digital formats: Planning for Library of Congress Collections. Advanced Audio Coding (MPEG-4). (2022, April 28). https://www.loc.gov/preservation/digital/formats/fdd/fdd000114.shtml ↩︎

    22. Sustainability of digital formats: Planning for Library of Congress Collections. Web Archive Collection Zipped. (2023, May 19). https://www.loc.gov/preservation/digital/formats/fdd/fdd000586.shtml ↩︎

    23. Sustainability of digital formats: Planning for Library of Congress Collections. WARC, Web ARChive file format. (2024, April 29). https://www.loc.gov/preservation/digital/formats/fdd/fdd000236.shtml ↩︎

    24. Sustainability of digital formats: Planning for Library of Congress Collections. JPEG 2000 Part 1, Core Coding System. (2022, November 22). https://www.loc.gov/preservation/digital/formats/fdd/fdd000138.shtml ↩︎

    25. Alto: Technical metadata for layout and text objects (standards, Library of Congress). (n.d.). https://www.loc.gov/standards/alto/ ↩︎

    26. Sustainability of digital formats: Planning for Library of Congress Collections. EPUB (Electronic Publication) File Format Family. (2020, May 12). https://www.loc.gov/preservation/digital/formats/fdd/fdd000310.shtml ↩︎

    27. Sustainability of digital formats: Planning for Library of Congress Collections. JPEG Image Encoding Family. (2022, April 26). https://www.loc.gov/preservation/digital/formats/fdd/fdd000017.shtml ↩︎

    28. Sustainability of digital formats: Planning for Library of Congress Collections. PNG, Portable Network Graphics. (2022, April 15). https://www.loc.gov/preservation/digital/formats/fdd/fdd000153.shtml ↩︎