---
title: Quality atom
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/reference_movie_descriptor_atom/quality_atom
---

# Quality atom

A reference movie atom may contain an optional quality atom.

## Overview

Overview Only one quality atom can be present. See Quality atom ('rmqu') for more information.

## See Also

### Data fields

- [Size](quicktime-file-format/reference_movie_descriptor_atom/size.md)
- [Type](quicktime-file-format/reference_movie_descriptor_atom/type.md)
- [Data reference atom](quicktime-file-format/reference_movie_descriptor_atom/data_reference_atom.md)
- [Data rate atom](quicktime-file-format/reference_movie_descriptor_atom/data_rate_atom.md)
- [CPU speed atom](quicktime-file-format/reference_movie_descriptor_atom/cpu_speed_atom.md)
- [Version check atom](quicktime-file-format/reference_movie_descriptor_atom/version_check_atom.md)
- [Component detect atom](quicktime-file-format/reference_movie_descriptor_atom/component_detect_atom.md)