Which metadata field is sometimes included to identify a recording's ISRC in BWF files?

• A. ISRC is sometimes included as a metadata field in BWF files.
• B. ISRC is the primary identifier used for the file path.
• C. ISRC is a timecode field.
• D. ISRC is the sample rate value.

Answer: (A)

The idea being tested is that BWF files can carry identifying information in their metadata, specifically a field for the ISRC. The ISRC (International Standard Recording Code) uniquely identifies a recording, so placing it in a metadata field within a BWF file lets the exact recording be recognized across systems and sessions, independent of file location or how the sound was produced. This isn’t about where the file lives (the file path), nor about timing (timecode) or audio properties (sample rate). In practice, the ISRC can be stored in a BWF metadata area such as the BEXT or iXML chunk, making it easy to read by workflow tools.