As per your suggestion, I loaded CVS 061026 and still no rewind function without pausing first.
More disturbing (maybe requires it's own thread) but I see that when I load my bookmarks, the time code for elapsed time shows ONLY the time elapsed FROM the bookmark and not the overall time. So the result is that both the time left and the time elapsed are incorrect.
I have not noticed this on small mp3 audiobooks (like those around 2hrs).
Can anyone confirm this?