---
title: Reserved
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/timecode_sample_description/reserved2
---

# Reserved

An 8-bit quantity.

## Overview

Overview This must be set to 0.

## See Also

### Data fields

- [Reserved](quicktime-file-format/timecode_sample_description/reserved.md)
- [Flags](quicktime-file-format/timecode_sample_description/flags.md)
- [Time scale](quicktime-file-format/timecode_sample_description/time_scale.md)
- [Frame duration](quicktime-file-format/timecode_sample_description/frame_duration.md)
- [Number of frames](quicktime-file-format/timecode_sample_description/number_of_frames.md)
- [Source reference](quicktime-file-format/timecode_sample_description/source_reference.md)