---
title: Item_ID
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/item_information_atom/item_id
---

# Item_ID

An unsigned 32-bit integer, unique within the container.

## See Also

### Data fields

- [Size](quicktime-file-format/item_information_atom/size.md)
- [Type](quicktime-file-format/item_information_atom/type.md)
- [Version](quicktime-file-format/item_information_atom/version.md)
- [Flags](quicktime-file-format/item_information_atom/flags.md)