trim m4b

M4B Converter: Convert M4B to MP3, Play, Split M4B on Win/Mac

M4B is audiobook or podcast file based on the MPEG-4 Part 14 standard. M4B can contain metadata including chapter markers, images, and hyperlinks. M4B Audiobooks can be purchased and downloaded from Apple iTunes Store, but there are also lots of free M4B audio books available for download on the internet other than Apple iTunes store.