If you’ve played around with BWF MetaEdit, you’ll have noticed that INFO_List aren’t the only metadata tags you can embed in a WAV file. The program also allows you to add or edit BWF extension metadata, known as BEXT metadata.
This is where things get a little confusing, so pay close attention. THere are actually two kinds of WAV files -- regular ol’ WAV and Broadcast WAV Files (BWFs). A standard WAV file only contains the sample rate, bit depth track count and length in the header (which is the important data placed at the beginning of a WAV file). A BWF is actually just a WAV file with extra information contained in the header -- the BEXT metadata, which is an archival standard. What this means is, if you add BEXT metadata to your WAV file, you’re turning it into a BWF.
Mind you, that isn’t anything to be alarmed or concerned about. Since that metadata in the header is the only difference, BWF files don’t require a special player for playback. In fact, the only question for your label to consider is: is the extra BWF metadata worth it?
Anyone who reads Indie Preserves will know that we’re in love with metadata -- we’d marry it if we could. (And embedded metadata? Ooh la la.) But when it comes to labels, we’re not so hot for BEXT metadata, and by extension, BWFs.
In essence, it has nothing to do with you, so don’t worry about it. You’ve got better things to do with your time...like embedding that INFO_List metadata. So get cracking!