These configuration options are affecting audio formats which are using ID3v2 tags (currently MP3 and TTA).

Read

The order below, is the order in which Mp3tag reads different tag formats (that means that displaying APEv2 tags is prioritized over displaying ID3v1 tags). Mp3tag only displays the contents of one tag format at a time. The read tag format is denoted in the Tag column of the File List.

ID3v1 If enabled, Mp3tag reads an existing ID3v1 tag.

ID3v2 If enabled, Mp3tag reads an existing ID3v2 tag.

APE If enabled, Mp3tag reads an existing APEv1 or APEv2 tag.

Write

ID3v1 If enabled, Mp3tag writes an ID3v1 tag to the file.

APEv2 If enabled, Mp3tag writes an APEv2 tag to the file. If the file already has an APEv1 tag, Mp3tag will update this tag to an APEv2 tag. If the file has an ID3v1 tag, Mp3tag will update this tag too.

ID3v2 If enabled, Mp3tag writes an ID3v2 tag to the file.

• ID3v2 only if ID3v1 too small If enabled, Mp3tag writes an ID3v2 tag only if the provided data exceeds the limitations of the ID3v1 tag. If the file already has an ID3v2 tag, Mp3tag will update this tag. If the tag contains a user-defined genre, an ID3v2 tag is written also.

• ID3v2.4 UTF-8 The newest revision of the ID3v2 standard. Tags are written in Unicode as UTF-8 encoded string. If you have problems with displaying the tags in other programs, please ask their authors to support ID3v2.4 (or switch to another option).

• ID3v2.3 UTF-16 If enabled, Mp3tag writes ID3v2.3 tags in Unicode encoded as UTF-16 LE.

• ID3v2.3 ISO-8859-1 If enabled, Mp3tag doesn’t use Unicode when writing ID3v2 tags. This is useful if you are using software or devices (like some car radios) which can’t read tags stored in Unicode format.

Remove

ID3v1 If enabled, Mp3tag removes an existing ID3v1 tag (and any Lyrics3 tag, which requires an ID3v1 tag to be present).

ID3v2 If enabled, Mp3tag removes an existing ID3v2 tag.

APE If enabled, Mp3tag removes an existing APEv1 or APEv2 tag.