---
title: Reference movie descriptor atom
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/reference_movie_atom/reference_movie_descriptor_atom
---

# Reference movie descriptor atom

A reference movie atom must contain at least one reference movie descriptor atom, and typically contains more than one.

## Overview

Overview See Reference movie descriptor atom ('rmda') for more information.

## See Also

### Data fields

- [Size](quicktime-file-format/reference_movie_atom/size.md)
- [Type](quicktime-file-format/reference_movie_atom/type.md)