I had considered "chunking" the book, but that's just too much like work ...
(My original plan had been to chop it into cd sized chunks and just use a CD player)
Mine
may keep it's place if I pause it and then let it turn itself off. I'm experimenting.
I'm also going to try to load the book onto my phone and see how it handles the pause/play element. It has to do better, and I'll just have to be more mindful of the battery charge before heading out. At the very least the player on the phone should have some kind of slider bar so it will be easier to find my starting point than on the MP3 player.