I wrote this in my free time with the intention of writing a nice Java Swing application. Unfortunately, I got side tracked (and lazy) and didn't quite finish so I'm putting my MP3 Tag library out there for other people to use. I would say it is 75% complete. However, since most MP3s have very simple tags, I think I've covered about 99.99% of them. I've been able to read and write all the MP3's that I have (3600 or so).

• This library covers the following MP3 tags (pretty much all of them)
  • ID3 1
  • ID3 1.1
  • ID3 2.2
  • ID3 2.3
  • ID3 2.4
  • Lyrics3 1
  • Lyrics3 2
• The library has not been fully tested. It has been tested against itself and a large sample of MP3s that I've downloaded. It still needs to be fully unit tested and tested directly against the C/C++ tag library.
• It is written against JDK 1.4.
• It supports reading, creation, editing, saving, deleting of all tags.
• It supports a FilenameTag, an ID3v2.4 tag that is created from the file name.
• It supports tag conversion.
• It supports multiple save options.
• It has a flexible object model which allows easy addition of new tags (FilenameTag for example) and new tag fields.
• Object Oriented Design Patterns were used in creating the object model.
• In addition to basic services, there are tag synchronization methods.
• There is intention to support ogg vorbis tags / comments in the future.
• Until I set the version to 1.0, the API might be making drastic changes.
• None of the methods are synchronized. Almost all the collections I use are not synchronized.