M4a. You signify and warrant to Zamzar that (a) you aren't a competitor of Zamzar, (b) you shall maintain publicly unannounced information and materials pertaining to Zamzar, pre-launch software, testing or testing procedures strictly conf…

The issue is easily solved by changing the M4A file into the usual MP3 format. In case your M4B audiobooks are purchased from iTunes, I extremely advocate that you simply comply with the steps in Part 1 to remove the DRM and convert M4B fi…