Sustainability of Digital Formats: Planning for Library of Congress Collections

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Format Descriptions for Generic Formats

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Generic formats are very widely applicable. For example: specifications for wrappers (e.g., RIFF and ISO_BMFF), bundling formats (e.g., METS and AES-31), and encodings (e.g., UTF-8 and IEEE 754-1985).

The descriptions listed on this page provide information about file formats, file-format classes, bitstream structures and encodings, and the mechanisms used to compress files or bitstreams. Inclusion of a format does not imply that it is preferred or acceptable for Library of Congress collections. Conversely, omission of a format from the list does not imply that it is not preferred or acceptable. Descriptions will be drafted and added over time. Persons with specialized knowledge are encouraged to review and comment on the descriptions using this contact form.

Last Updated: 01/28/2022