ISRC may be embedded in most file formats as
metadata. Example formats include MP3, M4A, AAC, FLAC, OGG, and WAV for audio and MP4, M4V, or MKV for video. • The standard for the
ID3v2.2 tag that was designed for use in
MP3 files, was published in March 1998 and defined a way to embed ISRCs in a 'TSRC' frame. • In August 2012, Barry Grint and the
European Broadcasting Union published a specification for embedding ISRCs in
Broadcast Wave Format, a WAV-with-metadata format. • Audio CDs defined by the
Red Book may also embed ISRC as part of the
CD-Text information. Metadata formats are not generally interchangeable as format converters may fail to translate the data. As a result, it is recommended to perform the embedding separately for each format. ==Obtaining ISRCs==