---
title: Media data atom types
framework: quicktime-file-format
role: collectionGroup
role_heading: API Collection
path: quicktime-file-format/media_data_atom_types
---

# Media data atom types

Store different types of media data, including video, sound, subtitles, and more.

## Overview

Overview QuickTime uses atoms of different types to store different types of media data—video media atoms for video data, sound media atoms for audio data, and so on. Review the following topics to understand the fundamentals of how QuickTime uses atoms for storage of different types of media data.

## Topics

### Video and sound

- [Video media](quicktime-file-format/video_media.md)
- [Sound media](quicktime-file-format/sound_media.md)
- [Music media](quicktime-file-format/music_media.md)
- [MPEG-1 media](quicktime-file-format/mpeg-1_media.md)
- [Movie media](quicktime-file-format/movie_media.md)
- [Defining media data layouts](quicktime-file-format/appendix_b_defining_media_data_layouts.md)

### Time-specific media

- [Timed metadata media](quicktime-file-format/timed_metadata_media.md)
- [Timecode media](quicktime-file-format/timecode_media.md)

### Text, captions, and subtitles

- [Text media](quicktime-file-format/text_media.md)
- [Closed captioning media](quicktime-file-format/closed_captioning_media.md)
- [Subtitle media](quicktime-file-format/subtitle_media.md)

### Track features

- [Modifier tracks](quicktime-file-format/modifier_tracks.md)
- [Creating movies with modifier tracks](quicktime-file-format/creating_movies_with_modifier_tracks.md)
- [Track references](quicktime-file-format/track_references.md)
- [Chapter lists](quicktime-file-format/chapter_lists.md)
- [Streaming media](quicktime-file-format/streaming_media.md)

### Hint media

- [Hint media](quicktime-file-format/hint_media.md)
- [Finding an original media track from a hint track](quicktime-file-format/finding_an_original_media_track_from_a_hint_track.md)
- [RTP hint tracks](quicktime-file-format/rtp_hint_tracks.md)
- [Hint sample data format](quicktime-file-format/hint_track_sample_description.md)
- [Packetization hint sample data](quicktime-file-format/packetization_hint_sample_data.md)