M4B

MPEG-4 Audio Layer audio book

File type: Audio and sound file

An m4b file extension is used for Apple MPEG-4 AAC audio files that contain audio books or audio podcast shows downloaded from the Apple iTunes Store. An m4b is similar to M4A audio format, but contain other metadata, like chapter markers, images and hyperlinks. M4B unlike M4A is able to remember the position, where it was paused.

Found 2 different file type records with the same m4b filename suffix.

.m4b (1)

What is m4b file?

File type category:
Audio and sound file

Date updated: July 13, 2025

The m4b file extension is associated with the Apple MPEG-4 audio bookmarkable file format that is used to store audio books and audio podcasts.

The M4B file format is similar to M4A AAC MPEG-4 audio file format. However M4B file contains other metadata including chapter markers, images, and hyperlinks. M4A files cannot be bookmarked (M4A file doesn't remember paused time), whereas M4B files can.

M4B audio books and audio podcasts are available on the Apple iTunes Store. Audio books are often distributed with Apple Digital Rights protection called FairPlay DRM.

How to open m4b file?

Use Apple iTunes, VLC Media Player, Winamp etc. to playback M4B audio book (podcast) files.

How to convert m4b file?

Use AVS Audio converter, or TuneClone Audio Converter to convert M4B audio book to any other audio file format.

Suggested software to open m4b file:

Apple iTunes for Windows

Apple iTunes for Mac

Associated software actions with the m4b file

Open

Software applications that can open m4b files:

Zune (Microsoft Windows)

MediaMonkey (Microsoft Windows)

Play

Apps designed for playing m4b files:

VLC media player (Microsoft Windows)

Microsoft Windows Media Player (Microsoft Windows)

Apple iTunes for Windows (Microsoft Windows)

Zune (Microsoft Windows)

MediaMonkey (Microsoft Windows)

Winamp (Microsoft Windows)

Helium Music Manager (Microsoft Windows)

Apple iTunes for Mac (Apple macOS / Mac OS X)

VLC media player for Mac (Apple macOS / Mac OS X)

VLC media player for Linux (Linux/Unix)

VLC media player for Android (Google Android)

Convert

Software apps that convert m4b files:

Aimersoft DRM Media Converter for Windows (Microsoft Windows)

MediaMonkey (Microsoft Windows)

Helium Music Manager (Microsoft Windows)

Import

Software apps that import m4b files:

Tiny Audio Converter (Apple macOS / Mac OS X)

Export

Software apps that export m4b files:

AVS Audio Converter (Microsoft Windows)

AudioBook Binder (Apple macOS / Mac OS X)

Tiny Audio Converter (Apple macOS / Mac OS X)

messages.fburn

messages.fburn_description:

MediaMonkey (Microsoft Windows)

Helium Music Manager (Microsoft Windows)

.m4b (2)

Myst IV: Revelation game archive

File type category:
Archive and compressed file
Game file

Date updated: July 11, 2024

The m4b file extension is associated with the Myst IV, an adventure video game for Microsoft Windows, Mac and Xbox console.

Archive format used in PC Game - Myst IV: Revelation.

How to open m4b file?

You cannot open this file type manually, it is accessed by the game automatically.

How to convert m4b file?

These games files cannot be converted to anything else. However, sometimes modding.

Suggested software to open m4b file:

Myst IV: Revelation

Associated software actions with the m4b file

Open

Software applications that can open m4b files:

Dragon UnPACKer (Microsoft Windows)

Extract

Software apps that extract m4b files:

Dragon UnPACKer (Microsoft Windows)

Other actions

Software applications that handle other tasks involving m4b files:

Myst IV: Revelation (Microsoft Windows)