How is everyone doing?
Ok, so I am sorry I don't know which section to post this in. if this is not the right section then I apologize.
As you might have seen from my older threads, I did audiobook giveaways a couple of times and yeah I can get any audiobook from audible.com.
the ones I uploaded today have timestamps, it been converted in another way. look for the ones which are in mp4 format.
about the old ones, you can use FFmpeg to re-encode them and it will embed the timestamps into the file.