I am looking for an Audiobook that implement the "audio_preview_url" at the chapter level.

[herbertrush]

Hi!

I am looking for an Audiobook that implement the "audio_preview_url" at the chapter level.  I am looking for the name of a book that supports this type of preview.  I don't see any that have implemented this JSON field.   There is lot's of books.

I see the samples but I don't see how I would get that field in the JSON.

Thanks

Thanks

Herb Rush