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Formats acceptés pour l'archivage au SLDR / A list of formats compliant with SLDR long-term preservation
- Cette liste est basée sur l'annexe 3 de la convention d'archivage rédigée par le CINES le 13 septembre 2010 (version 3.1).
Pour plus de détails :
http://www.tge-adonis.fr/wiki/uploads/d/dd/GuideFormatsAdonis-04a_V3.pdf
Avant de soumettre des documents, vérifiez leur compatibilité avec l'archivage pérenne (sur un petit échantillon) grâce au validateur du CINES :http://facile.cines.fr - The following list is based on version 3.1 of the long-term preservation agreement outlined by CINES on 13 September 2010.
Details onhttp://www.tge-adonis.fr/wiki/uploads/d/dd/GuideFormatsAdonis-04a_V3.pdf
Before submitting documents, please check their compatiblity with long-term preservation (on small samples) using CINES validator:http://facile.cines.fr
Audio
- WAV or BWF with linear (PCM) encoding
- AIFF with linear (PCM) little-endian encoding
- AAC
- FLAC
Video
- MPEG4 + H.264 (AVC) + AAC
- OGG + Theora + Vorbis
- MKV + H.264 (AVC) + Flac (the only format with linear-encoded sound)
Notes :
- Si la source est au format DV il est fortement conseillé de la préserver en plusieurs exemplaires sur des disques externes en attendant qu'un format non comprimé soit accepté à l'archivage. Le format DV préserve par ailleurs le time-code absolu des enregistrements qui peut être très utile au montage.
- If the source video is in DV format we strongly recommend to preserve copies on external disks till the day a non-compressed format is accepted for long-term preservation. DV format also encapsulates absolute time-code which may be very practical for editing.
- Si le signal sonore existe en format linéaire, penser à exporter une version AIFF ou WAV au format PCM pour préserver la qualité de la piste d'origine.
- If a linear format is available for the sound track, do not forget to export a PCM-encoded AIFF or WAV file to preserve the quality of the original track.
- Attention de ne pas utiliser un format de fichier qui contiendrait des pistes supplémentaires. Par exemple, certains logiciels ajoutent une piste textuelle pour des marques de chapitre (chapter markers). C'est le cas de HandBrake, réglage par défaut. Il faut impérativement désactiver cette option !
- Beware of not using a file format containing additional tracks. For instance, some software packages include a text track carrying chapter markers. Such is the case with HandBrake, default settings. This option must be deactivated!
Image
- PDF versions 1.2 to 1.7
- PDF/A
- PNG
- TIFF versions 4.0, 5.0, 6.0
- SVG versions 1.0, 1.1
- GIF versions 87a, 89a
Text
- XML versions 1.0, 1.1
- HTML versions 3.2, 4.0, 4.01
- TXT UTF-8
- TXT ASCII
Autres / Other
- ODT (OpenOffice)
Notes
Quelques formats spécifiques / A few specific formats
Enrichissements / Annotations
- Text files with UTF8 (Unicode) encoding. Beware that UTF16 is not accepted!
- ODT (Open Document)
- RTF: we suggest converting to ODT ou XML (voir)
PRAAT files
- These are text files that should be stored in UTF8 format. Please save the list of extensions used for these files to make sure that they will be recognised as text files. See for instance sldr000034 in which f0, cb, int, lab, pho, means, intensity are declared as extensions of text files.
- Any file with an unknown extension is treated as a binary file of unknown format, with the effect that it cannot be sent to long-term preservation.
- A script is proposed to unpack a PRAAT archive and replace is with AIFF or WAV and UTF8 files.
- Another script makes it possible to recycle PRAAT annoattion files to UTF8. => Carefully check the result!
- These are text files that should be stored in UTF8 format. Please save the list of extensions used for these files to make sure that they will be recognised as text files. See for instance
Formats à l'étude / Formats eligible for future extensions
- ODS (OpenOffice spreadsheet). Please convert all spreadsheets (e.g. MS-Excel) to this format!
Liens / Links
- http://en.wikipedia.org/wiki/WAV
- http://en.wikipedia.org/wiki/Audio_Interchange_File_Format (Wikipedia)
- http://www.ebu.ch/fr/technical/publications/userguides/bwf_user_guide.php
- AIFF (Audio Interchange File Format) (Library of Congress)
- http://fr.wikipedia.org/wiki/Core_Audio_Format
- http://en.wikipedia.org/wiki/Advanced_Audio_Coding
- http://en.wikipedia.org/wiki/Ogg
- http://en.wikipedia.org/wiki/Vorbis
- http://en.wikipedia.org/wiki/METS
