See minutes online for a more detailed record of the discussions.
This question has been raised in Issue #408. Having a clear place to find those materials is important (e.g., for accessibility purposes if they provide a textual transcript). The discussion was around whether supplemental materials (e.g., PDF booklet) in an audiobook should be added in a TOC or whether it should be part of the usual resources’ structure labeled with a particular
rel value. There is no formal resolution yet.
The current audiobook uses the
duration term from schema.org. It does it for an individual (audio) resource as well as for the whole book. However, there is nothing in that definition which would be audio specific; the same attribute could also be used for, e.g., video resource as well.
Another issue was what exactly the role is of the book level information. Current readers usually calculate that value; they do not trust the author/publisher data for accuracy. On the other hand, that value may have an important role in user-friendliness; e.g., it would inform the “reader” (i.e., listener) how long that book is.
Two outcomes of the discussion:
- It was decided to move the
durationterm into the general WPUB draft as one of the generic terms for linked resources
- An alternative for book level data could be the schema.org
timeRequiredterm, that seems to be looser in its requirement, and may very well be enough for the purpose of that information. To be discussed further.