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ID3 Metadata for MP3, Version 1
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Format Description Properties
• ID: fdd000107
• Short name: ID3v1
• Content categories: sound
• Format category: metadata encoding
• Last significant update: 2007-02-16
• Draft status: full
Identification and description
Full name | ID3 Metadata for MP3, Version 1 |
Description | Structured data chunk containing descriptive metadata about the file to which it is post-pended, virtually always an MP3_FF (MP3 sound file). Referred to by its creators as an "informal standard," ID3v1 permits the identification of title, artist, date, genre, etc. and so on. See Notes for more information. |
Production phase | Generally used for final-state, end-user delivery. |
Relationship to other formats | |
Subtype of | ID3, ID3 Metadata for MP3 |
Used by | MP3_FF, MP3 file format |
Local use
LC experience or existing holdings | See ID3 |
LC preference | See ID3 |
Sustainability factors
Disclosure | Version 1 partially documented. Developed by Martin Nilsson and colleagues, whose ID3.org web site is now strongly oriented to ID3v2, version 2. |
Documentation | Documentation for version 1 available at ID3.org and Doug's AppleScripts for iTunes.
|
Adoption | Very widely adopted for World Wide Web dissemination and playback on specialized devices. |
Licensing and patent claims | None |
Transparency | See ID3 |
Self-documentation | See ID3 |
External dependencies | None |
Technical protection considerations | None |
Quality and functionality factors
Normal rendering for sound | Not applicable |
Fidelity (support for high audio resolution) | Not applicable |
Support for multiple sound channels | Not applicable |
Support for downloadable or user-defined sounds, samples, and patches | Not applicable |
Functionality beyond normal rendering for sound | None |
File type signifiers
Tag type | Value | Note |
Filename Extension | Not applicable | |
Internet Media Type | Not applicable | |
Magic numbers | Not applicable | See 3DI marker information in Notes below. |
Notes
General | ID3v1 binary content is structured as "frames" just like MP3_ENC (MP3 audio encoding). Version 1 is limited to 125 bytes of data; four tags are limited to 30 bytes, one to 4 bytes, and the genre tag to a one-byte code.
When ID3 metadata is placed in a MP3_FF file, established conventions call for the use of the ID3 marker which consists of the string "3DI". For ID3v1, the marker is positioned 10 bytes preceding the metadata. For ID3v2 data, the marker is positioned in the first 3 bytes of the file when the metadata is pre-pended and 10 bytes from the end of a file when it is post-pended. |
History | |
Format specifications
URLs
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Useful references
URLs
•
ID3v1 page at ID3.org (http://www.id3.org/ID3v1)
•
ID3v1 notes at Doug's AppleScripts for iTunes (http://www.dougscripts.com/itunes/itinfo/id3tags00.php).
•
ID3.org web site (http://www.id3.org/).
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Last Updated: 03/ 7/2007