Frank, I believe that's all coming from a database and is not stored within the file itself.
While it's true that the RIFF standard
allows for additional information blocks in wave files - that's the foundation for BWF - there is little standardization for what goes into them.
A wave file consists of a collection of "chunks", most of which are data chunks, but the spec allows for other types of chunks, even including an
XML chunk that would let you enter MP3-tag type metadata.
But if applications can't read them, they're pretty useless. Pro Tools, Nuendo, Pyramix and Final Cut Pro can read them. I don't know of any freeware that can read or write them.
I use Adobe Audition, but it's news to me that AA can read these fields. It does MP3 tags, and it can save a WAV file as a BWF and include the standard BWF fields. That's it, AFAIK.