---
title: "Base media information atom ('minf')"
framework: quicktime-file-format
role: symbol
role_heading: Atom
path: quicktime-file-format/base_media_information_atom
---

# Base media information atom ('minf')

An atom that stores the media information for media types such as timed metadata, text, MPEG, time code, and music.

## Mentioned in

QuickTime File Format change log

## Overview

Overview The base media information atom stores the media information for media types such as timed metadata, text, MPEG, time code, and music. Media types that are derived from the base media handler may add other atoms within the base media information atom, as appropriate. The only media type that defines additional atoms is timecode media. See Timed metadata media and Timecode media for more information about this media types. The layout of a base media information atom is as follows:  |   |   |   |  ‡ denotes required atom.

## Topics

### Data fields

- [Size](quicktime-file-format/base_media_information_atom/size.md)
- [Type](quicktime-file-format/base_media_information_atom/type.md)
- [Base media information header atom](quicktime-file-format/base_media_information_atom/base_media_information_header_atom.md)

## See Also

### Describing media

- [Media atom ('mdia')](quicktime-file-format/media_atom.md)
- [Media header atom ('mdhd')](quicktime-file-format/media_header_atom.md)
- [Extended language tag atom ('elng')](quicktime-file-format/extended_language_tag_atom.md)
- [Handler reference atom ('hdlr')](quicktime-file-format/handler_reference_atom.md)
- [Media information atoms](quicktime-file-format/media_information_atoms.md)
- [Video media information atom ('minf')](quicktime-file-format/video_media_information_atom.md)
- [Video media information header atom ('vmhd')](quicktime-file-format/video_media_information_header_atom.md)
- [Sound media information atom ('minf')](quicktime-file-format/sound_media_information_atom.md)
- [Sound media information header atom ('smhd')](quicktime-file-format/sound_media_information_header_atom.md)
- [Base media information header atom ('gmhd')](quicktime-file-format/base_media_information_header_atom.md)
- [Base media info atom ('gmin')](quicktime-file-format/base_media_info_atom.md)
- [Data information atom ('dinf')](quicktime-file-format/data_information_atom.md)
- [Data reference atom](quicktime-file-format/media_data_reference_atom.md)