Originally Posted by ectoplasm
In the .cr3 folder, which for me is /mnt/sdcard/.cr3/, there are two sqlite databases which store the book names, last read position, and other things. I don't know about ratings, since I never used that.
The path is stored, so it might need to match exactly on the new device, for example:
Although I never tested this so maybe Coolreader might adjust to matching the filename.
Thanks I will give this a try and see what happens.