Wish that AAXtoMP3 thing were Mac as well as PC! However, the Ondesoft produce mentioned on the first page is free (for a facebook like and share - booo) for one more day. Since somebody here says it's good, I perjured my soul and like&shared to get it. Here's my thread mentioning it. Only one more day to get it free:
https://www.mobileread.com/forums/sho...d.php?t=261684
After you like&share, you have to download each piece separately, and copy a long license code, both from the instructions they send you. SOO don't lose those instructions; they contain the download link as well as the license code.