Use of The INFO Chunk
The optional INFO chunk allows RIFF files to be "tagged" with information falling into a number of predefined categories, such as copyright ("ICOP"), comments ("ICMT), artist ("IART"), in a standardised way. These details can be read from a RIFF file even if the rest of the file format is unrecognised. The standard also allows the use of user-defined fields. Programmers intending to use non-standard fields should bear in mind that the same non-standard subchunk ID may be used by different applications in different (and potentially incompatible) ways.
Read more about this topic: Resource Interchange File Format
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