cannot convert amazon audible files to mp3 to put on my player

A recent article. "Best Free Music Organizer Software Review & Download" was something I was looking for . I've tried a number of music catalogers over the years.... most were cumbersome or the UI was hard for me to use, because of my visual impairment. ie. 1, 2, 3 been there, done that both free and paid versions and wasn't happy . MUSICZEN looked promising so I downloaded the free version and was rather impressed in it's ease of use. It took a while for it to sort through over a TB of mp3s but that was expected . I wanted to try out some of the features of the paid version , and that's where the trouble began . I paid for a license, but never got it. My requests for it have gone unanswered and so was my request for a refund . No big deal, but thought you'd like to know that only the free version is available .