Sustainability of Digital Formats: Planning for Library of Congress Collections |
|
![]() |
|
Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | RAR Archive File Format, Version 4 |
---|---|
Description |
Roshal ARchive format version 4 (RAR4) is sometimes also referred to as version 2.9. PRONOM fmt/411 uses the title version 2.9 but WinRAR 5.0 and RAR for Android refer to this format as RAR4. See RAR_Family for details on the file structure. Some of the key features of RAR4 include
|
Production phase | See RAR_Family |
Relationship to other formats | |
Subtype of | RAR_Family, RAR Archive File Format Family |
Has earlier version | RAR3, RAR Archive File Format, Version 3 |
Has later version | RAR5, RAR Archive File Format, Version 5 |
LC experience or existing holdings | See RAR_Family. |
---|---|
LC preference | None |
Disclosure | See RAR_Family |
---|---|
Documentation | See RAR_Family. |
Adoption | See RAR_Family |
Licensing and patents | See RAR_Family |
Transparency | See RAR_Family |
Self-documentation | See RAR_Family |
External dependencies | See RAR_Family |
Technical protection considerations | See RAR_Family |
Other | |
---|---|
Bundling/compression | See RAR_Family |
Tag | Value | Note |
---|---|---|
Filename extension | See note. | See RAR_Family |
Internet Media Type | See note. | See RAR_Family |
File signature | Hex: 52 61 72 21 1A 07 00 ASCII: Rar! |
Wikipedia states that this magic number is applicable for RAR1.5 - RAR4 although Gary Kessler's File Signature Table and RAR 5.0 archive format tech note only specifically list this magic number for RAR4, not earlier versions. Acritum Software's description of RAR version 3.93 (not described at this site) lists this value for all versions since RAR1.5. |
Pronom PUID | fmt/411 |
PRONOM labels this as RAR version 2.9 but other documentation including WinRAR 5.0 and RAR for Android refer to this version as RAR4. See http://www.nationalarchives.gov.uk/PRONOM/fmt/411 |
Wikidata Title ID | See note. | See RAR_Family. |
General | See RAR_Family. |
---|---|
History | See RAR_Family. |
|