Most of the id3 functions either let you specify or return a tag version. In order to specify the version please use on of these constants.
ID3_V1_0
(integer)
ID3_V1_0 is used if you are working with
ID3 V1.0 tags. These tags may contain the fields title, artist,
album, genre, year and comment.
ID3_V1_1
(integer)
ID3_V1_1 is used if you are working with
ID3 V1.1 tags. These tags may all information contained in v1.0
tags plus the track number.
ID3_V2_1
(integer)
ID3_V2_1 is used if you are working with
ID3 V2.1 tags.
ID3_V2_2
(integer)
ID3_V2_2 is used if you are working with
ID3 V2.2 tags.
ID3_V2_3
(integer)
ID3_V2_3 is used if you are working with
ID3 V2.3 tags.
ID3_V2_4
(integer)
ID3_V2_4 is used if you are working with
ID3 V2.4 tags.
ID3_BEST
(integer)
ID3_BEST is used if would like to let the id3 functions
determine which tag version should be used.