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.M4B File Extension
TIP: Run a free scan for .M4B file extension errors.
| File Type |
MPEG-4 Audio Book File |
| Popularity |
 Common |
| Category |
Audio Files |
| File Description |
Audiobook file based on the MPEG-4 container format; typically compressed with .AAC encoding; nearly identical to an .M4A file, but denoted as an audiobook and can be "bookmarked" by supporting audio players.
The M4B extension is used by audiobooks downloaded from the Apple iTunes store; these audiobooks may be copy-protected using Apple's FairPlay DRM, which means they can only be played on authorized computers or iPods.
Winamp can be used to play unprotected M4B files on Windows computers; however, the settings for the MPEG-4 plug-in may need to be modified to support files with an ".m4b" extension. |
| Program(s) that open m4b files |
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Mac OS |
 Apple iTunes
Microsoft Windows Media Player
VideoLAN VLC media player
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Linux |
VideoLAN VLC media player |
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| Updated 10/28/2009 |
 Fix file extension .M4B errors. |
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