Details: File format summary

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Properties

Summary
Name	Maptech BSB Documentation File
Version
Other names
Identifiers	PUID: fmt/1875
Family
Classification	Text (Structured), Dataset
Disclosure
Description	BSB (or BSB/KAP) is a file format used primarily for the storage and transmission of nautical charts. Although the format is commonly known as "BSB", the main file extension is actually .kap (or sometimes .cap), though .bsb files can also optionally be used. The main image data (as raster images) is found in .kap files, possibly with multiple images in separate files being part of a multi-page chart. The .bsb file, if present, has additional data pertaining to the chart as a whole. Additional metadata is contained in associated text files, generally stored with .bsb.txt and .kap.txt double extensions, or else names ending in "_bsb.txt" and "_kap.txt".
Orientation
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	The National Archives and Records Administration / The National Archives and Records Administration
Source date	04 Jul 2023
Source description	11/2023 (v.115)- Modified the offset values from null to 0 as part of a project to match PRONOM data with the xsd standard.
Last updated	14 Nov 2023
Note	https://web.archive.org/web/20161021191749/http://www.iho.int:80/iho_pubs/standard/S-64/RNC_Test_Data_Sets/BSB_TDS/BSB_Test_Dataset_Instructions_for_RNC.pdf