Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .m4b

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .m4b file?
  • Which program can create the .m4b file?
  • Where can you find a description of the .m4b format?
  • What can convert .m4b files to a different format?
  • Which MIME-type is associated with the .m4b extension?
Mpeg-4 Audio Book .m4b file icon

Mpeg-4 Audio Book

M4B file is a MPEG-4 Audio Book (MP4). M4A files are very similar to MP4 files, and the M4B format is only different from M4A because it can be bookmarked, allowing an MP3 player to return exactly to the last listening point. M4B is popular for audiobooks and podcasts for this very reason.
Category: Audio files
Application: Windows Media Player
Program name: mplayer.exe
Mime-type: audio/x-m4b
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Audio Interchange File
CD Audio Track
MIDI Music
Real Audio Sound
Macintosh Sound Resource
Amiga 8SVX Sound
Creative Labs Sound Blaster Sound
Windows Waveform Sound
AC-3 Compressed Audio

Other types of files may also use the .m4b file extension. If you have helpful information about .m4b extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

iTunes M4V Video
Minitab Exec File
Sony Network Camera MPEG-4 Video
Model Builder Document
Autodesk Maya 3D Binary Scene
Mathematica Binary File
M4 Macro File
PRO100 3D Interior Catalog Element
Multiple Resolution Bitmap

The .m4b filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

m4v (10), mtb (10), mb (10), m4f (8), mb4 (7), mrb (4), m4 (4), meb (4), h4b (1)

Can't open a .m4b file?

If you want to open a .m4b file on your computer, you just need to have the appropriate program installed. If the .m4b association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.m4b

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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