For the Fuze and Clip+, the hot ticket is to use Audible Format 4. This format works very well.
Audible Enhanced (aax) is supported as well, but I have had the best results with Format 4.
For my e280v2, it’s happy with the more compressed Format 3. The e280 is my audiobook workhorse, so I have plenty of books on it. Format 3 doesn’t work with the Fuze / Clip+.
Bob :smileyvery-happy: