How one can Convert MP3 to M4B on Windows COMPUTER & Mac - Best MP3 to M4B Converter M4B file is an MPEG 4 file extension that is used for storing Audiobooks in iTunes. If you sign up or use our Services in a personal or individual capabil…

MP4 file is a multimedia file commonly used to store a movie or video clip, however may additionally contain subtitles or pictures. For the DRM protected audiobooks, please ensure they are licensed to play on iTunes first. You must have th…