---
title: Reserved
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_profile_atom/reserved
---

# Reserved

A 32-bit field.

## Overview

Overview The field is reserved and must be set to zero.

## See Also

### Data fields

- [Part-ID](quicktime-file-format/track_profile_atom/part-id.md)
- [Feature code](quicktime-file-format/track_profile_atom/feature_code.md)
- [Value](quicktime-file-format/track_profile_atom/value.md)