Which metadata fields are essential in a BWF file for post-production?

• A. Track name, timecode, sample rate, bit depth, date, producer, and sometimes ISRC.
• B. Video frame rate, color space, and subtitle language.
• C. File path, disk space, and license key.
• D. Chassis number, vendor, and serial date.

Answer: (A)

Post-production relies on metadata to identify and synchronize audio across multiple tracks and systems. The essential fields in a BWF file are the track name, timecode, sample rate, bit depth, date, and producer, with ISRC optional. Track name helps you recognize each audio element in a session; timecode provides a reference for syncing with video and other media; sample rate and bit depth describe how the audio is digitally represented, which is crucial for playback, processing, and compatibility across DAWs; the date helps organize sessions and versions; the producer credits who is responsible for the take or session. ISRC can be included if you need track-level rights and royalty tracking. The other options include metadata that isn’t typically part of BWF’s essential post-production workflow, such as video-specific parameters or hardware-only details.