Difference between revisions of "ID3"

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'''ID3''' is one of the oldest ways of storing [[metadata]] in [[MP3]] files, and is only intended for MP3 files. There are two major versions.
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'''ID3''' is one of the oldest ways of storing [[metadata]] in [[MP3]] files, and is mostly intended for MP3 files. There are two major versions.
  
  
 
== ID3v1 ==
 
== ID3v1 ==
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ID3v1.x is probably the most commonly used tag format, it was used originally on MP3's, it also probably the least flexible format. In total the tag had a fixed size of 128 bytes.
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ID3v1.1 was a small "patch" for ID3v1 that added a field for the tracknumber, using the last two bytes of the comment field (so the comment field became 28 characters).
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Information on the ID3v1.x standards can be found at http://www.id3.org/id3v1.html.
  
 
This is a very basic tagging format. It's limited to the following fields:
 
This is a very basic tagging format. It's limited to the following fields:
  
*Song title
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*Song title (30 characters)
*Artist
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*Artist (30 characters)
*Album
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*Album (30 characters)
 
*Year
 
*Year
*Comment
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*Comment (28 characters)
*Genre
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*Genre   (preconfigured list)
 
*Album track (ID3v1.1)
 
*Album track (ID3v1.1)
  
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== ID3v2 ==
 
== ID3v2 ==
  
ID3v2 is much more complicated than version 1, and all fields can be defined freely. It also supports embedding pictures and other data. Usually, a rewrite of the file is neccessary each time you update an ID3v2 field.
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ID3v2 is a highly-extensible tagging format. Rather than allowing arbitrary name-value pairs like [[APEv2]] or [[Vorbis comment]], ID3v2 has a large database of specific field names that can be filled with various data. It is presently the only tagging format other than ID3v1 to gain acceptance and use on portables. However, in programs, it is difficult to add support, due to the format being incredibly complex. Furthermore, there have been technical issues in earlier versions of the specification that may still exist. These issues can cause conflict in a standard MPEG-1 Layer 3 stream.  
 
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== External Links ==
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http://www.id3.org
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ID3v2 Specifications: http://www.id3.org

Revision as of 20:42, 8 April 2005

ID3 is one of the oldest ways of storing metadata in MP3 files, and is mostly intended for MP3 files. There are two major versions.


ID3v1

ID3v1.x is probably the most commonly used tag format, it was used originally on MP3's, it also probably the least flexible format. In total the tag had a fixed size of 128 bytes.

ID3v1.1 was a small "patch" for ID3v1 that added a field for the tracknumber, using the last two bytes of the comment field (so the comment field became 28 characters).

Information on the ID3v1.x standards can be found at http://www.id3.org/id3v1.html.

This is a very basic tagging format. It's limited to the following fields:

  • Song title (30 characters)
  • Artist (30 characters)
  • Album (30 characters)
  • Year
  • Comment (28 characters)
  • Genre (preconfigured list)
  • Album track (ID3v1.1)


ID3v2

ID3v2 is a highly-extensible tagging format. Rather than allowing arbitrary name-value pairs like APEv2 or Vorbis comment, ID3v2 has a large database of specific field names that can be filled with various data. It is presently the only tagging format other than ID3v1 to gain acceptance and use on portables. However, in programs, it is difficult to add support, due to the format being incredibly complex. Furthermore, there have been technical issues in earlier versions of the specification that may still exist. These issues can cause conflict in a standard MPEG-1 Layer 3 stream.

ID3v2 Specifications: http://www.id3.org