This page contains information on the M4B file extension (MPEG-4 Audio Layer Bookmarkable File), a popular video file format

M4B M4B (Audio)

File extension .m4b
Category Audio File
Description Audiobook and podcast files which also contain metadata including chapter markers, images, and hyperlinks can use the extension .m4a but more commonly use the .m4b extension. M4b files support metadata for chapters and bookmarking on supporting players and most commonly uses AAC (Advanced Audio Codec).
Actions
Technical Details The audio in a M4b file is encoded with the AAC compression format and can therefore be protected with Apple's FairPlay DRM copy protection system. M4b files can contain metadata as defined by the format standard and in addition can contain Extensible Metadata Platform (XMP) metadata.
Associated programs
  • Apple iTunes
  • Apple QuickTime Player
Developed by Apple
MIME type
  • audio/m4b
Useful links

M4B Convert M4B file

Using Zamzar it is possible to convert M4B files to a variety of other formats

  • m4b to aac (Advanced Audio Coding File)
  • m4b to ac3 (AC3 Audio File)
  • m4b to flac (Free Lossless Audio Codec)
  • m4b to m4a (Compressed video file)
  • m4b to m4r (iPhone Ringtone File)
  • m4b to mp3 (Compressed audio file)
  • m4b to mp4 (MPEG-4 Video File)
  • m4b to ogg (Ogg Vorbis Compressed Audio File)
  • m4b to wav (Windows audio file)
  • m4b to wma (Windows Media Audio)
M4B Converter Audio