Format
Open Packaging Format
Summary
- Name
- Open Packaging Format
- Version
- 3
- Identifiers
- PUID: fmt/2032
- Format type
- Audio
- Description
- The Open Package file with the extension opf is a format used by the openebook group (https://openebook.org/). Daisy Talking Book v.3 packages must include an opf file if they are to conform to Daisy standards.
- Note
- https://www.niso.org/publications/ansiniso-z3986-2005-r2012-specifications-digital-talking-book version 3 https://idpf.org/epub/20/spec/OPF_2.0.1_draft.htm https://daisy.org/ https://preservation.tylerthorsted.com/2024/10/04/daisy/ https://github.com/digital-preservation/PRONOM_Research/tree/main/Submissions/Daisy
- File extensions
-
opf - Source
- Brigham Young University / Brigham Young University
Relationships
- Has priority over
Internal signatures
Open Packaging Format
- Note
- BOF, offset 0-3 magic bytes: {0-3}<?xml version=("|')1.0("|'){0-256}<package*openebook EOF offset 0-16: </package>
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 3
- Byte Sequence
3C3F786D6C2076657273696F6E3D(22|27)312E30(22|27){0-256}3C7061636B616765*6F70656E65626F6F6B- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 16
- Byte Sequence
3C2F7061636B6167653E- Endianness
- None
Changelog
-
Added in V120
- Release date
- 25 February 2025
Open Packaging Format: Signature researched and samples provided by The National Library of Estonia and Brigham Young University.
Open Packaging Format: Full entry added. Submitted by The National Library of Estonia and Brigham Young University.