M4B files are based on the widely used and well-known container format MPEG-4 and are audiobook files. Usually,.AAC encoding is used to compress them. The M4A file extension is used by another audio file format that is very close to, if not exactly the same as, M4B files. The M4B file, on the other hand, is an audiobook file rather than merely an audio file. For instance, audio players can now bookmark certain files thanks to this.
The Apple iTunes store offers downloads of files with the M4B extension. They are audiobooks that can be secured using FairPlay DRM, Apple’s proprietary DRM solution. This indicates that certain protected files can only be opened on authorised PCs, iPods, or other Apple devices. M4B files can also be played by some non-Apple software, such as Winamp for Windows. They can only play unprotected M4B files, though, and generally require some plugin tinkering to support this particular file format.
list of programs that can open M4B documents:
- Apple iTunes (Windows & Mac)
- File Viewer Plus (Windows)
- Nullsoft Winamp (Windows)
- Microsoft Windows Media Player (Windows)
- Roxio Creator NXT Pro (Windows)
- Ventis Media MediaMonkey (Windows)
- VideoLAN VLC media player (Windows, Mac & Linux)