---
title: Size
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/media_data_reference_atom/size
---

# Size

A 32-bit integer that specifies the number of bytes in this data reference atom.

## See Also

### Data fields

- [Type](quicktime-file-format/media_data_reference_atom/type.md)
- [Version](quicktime-file-format/media_data_reference_atom/version.md)
- [Flags](quicktime-file-format/media_data_reference_atom/flags.md)
- [Number of entries](quicktime-file-format/media_data_reference_atom/number_of_entries.md)
- [Data references](quicktime-file-format/media_data_reference_atom/data_references.md)