- Extension
- .m4b
- .vtt
- Format
- Binary
- Text
- Category
- Audio
- Subtitles
- Developer
- Apple
- W3C
- Description
- It is an audiobook file compressed using .AAC algorithm based on MPEG-4 container format. It is similar to .M4A file but its denoted as an audiobook and supporting audio players can bookmark it.
- WebVTT (Web Video Text Tracks) is a text file format that is used to store subtitles and captions for online video content. It is supported by many web browsers and can be used to add captions and subtitles to HTML5 videos.
- MIME Type
- audio/x-m4a
- text/vtt
