This specification extends and revises the DAISY 2.01 specification. These revisions are are intended to bring this specification more in line with the DAISY 3/NISO DTB specification, and to clarify ambiguities in the DAISY 2.01 specification.

The major revisions made in this version of the specification are:

• NCC and text content documents use XHTML 1.0
• NCC and SMIL document metadata has been revised and clarified
• SMIL document structure requirements have been clarified
• A master SMIL document structure has been defined
• Supported audio formats have been defined

The DAISY 2.02 specification is technically backwards compatible with the DAISY 2.0 specification.