Ability to have chapter Metadata embedded or added
as you may know some podcast platforms are able to read chapters that are embedded in the id3v2.3 tags for mp3 and i believe possibly apple m4a but that might not be id3 tags im not sure, this feature can also be used to add images to each chapter and other info.
But i don't believe any podcast platforms support the extra features just chapters.
here is a link to a java tool for adding chapters to the id3 Metadata ID3v2 Chapter Tool (sourceforge.net) it also explains a bit about it.
i think it would be a great feature to implement, well at least the Embedded chapter part not so much the per chapter images and info etc.