This International Standard specifies a file format for interchanging audio data between compliant equipment. It is primarily intended for audio applications in professional recording, production, post production, and archiving. It is derived from the EBU Broadcast Wave Format but is also compatible with variant specifications including ITU-R BR.1352-3-2007 and the Japan Post Production Association s BWF-J An optional extended format, BWF-E, supports 64-bit addressing to permit file sizes greater than 4 GBytes.