---
title: kMovieMediaDefaultDataReferenceID
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/movie_media_sample/kmoviemediadefaultdatareferenceid
---

# kMovieMediaDefaultDataReferenceID

An identifier for the data reference to use when instantiating the embedded movie for this sample.

## Overview

Overview This atom contains a QTAtomID that indicates the ID of the data reference to use when instantiating the embedded movie for this sample. If this atom is not present, the data reference with an ID of 1 is used.

## See Also

### Data fields

- [kMovieMediaDataReference](quicktime-file-format/movie_media_sample/kmoviemediadatareference.md)
- [kMovieMediaAutoPlay](quicktime-file-format/movie_media_sample/kmoviemediaautoplay.md)
- [kMovieMediaLoop](quicktime-file-format/movie_media_sample/kmoviemedialoop.md)
- [kMovieMediaUseMIMEType](quicktime-file-format/movie_media_sample/kmoviemediausemimetype.md)
- [kMovieMediaTitle](quicktime-file-format/movie_media_sample/kmoviemediatitle.md)
- [kMovieMediaAltText](quicktime-file-format/movie_media_sample/kmoviemediaalttext.md)
- [kMovieMediaClipBegin](quicktime-file-format/movie_media_sample/kmoviemediaclipbegin.md)
- [kMovieMediaClipDuration](quicktime-file-format/movie_media_sample/kmoviemediaclipduration.md)
- [kMovieMediaEnableFrameStepping](quicktime-file-format/movie_media_sample/kmoviemediaenableframestepping.md)
- [kMovieMediaBackgroundColor](quicktime-file-format/movie_media_sample/kmoviemediabackgroundcolor.md)
- [kMovieMediaRegionAtom](quicktime-file-format/movie_media_sample/kmoviemediaregionatom.md)
- [kMovieMediaRectangleAtom](quicktime-file-format/movie_media_sample/kmoviemediarectangleatom.md)