This is for standard MP3 players, where OneClickdigital audiobooks are transferred to from the computer. Choose between the two main device types, then the computer you will transfer from. If you do not know what version of Windows or Mac you have, please see this page.
iPod - Apple Brand Players (Shuffle, Nano, etc)
OneClickdigital Software Available Compatible with both formats of audiobook.
No Software Option Only Non-Protected format audiobooks.
All Other MP3 Brands - Sansa, Walkman, Creative, etc Compatible with only Non-Protected format audiobooks for all options. This changed summer 2015, previously these brands could accept both formats from a Windows computer. If you missed this news, here is the blog post.