In chapters mode playback works well for mp3 files in simple scenario.
However, when chapters are imported from m4b book all tracks in chapters still refers to original file and book as played not by chapters but as single file.
Solution: replace references to original book file with reference to sub-tracks.
Also playback does not work for apple books encoded with alac codec. This unlikely could be fixed w/o shadow re-encoding.
In chapters mode playback works well for mp3 files in simple scenario. However, when chapters are imported from m4b book all tracks in chapters still refers to original file and book as played not by chapters but as single file. Solution: replace references to original book file with reference to sub-tracks.
Also playback does not work for apple books encoded with alac codec. This unlikely could be fixed w/o shadow re-encoding.