External data not relevant to the function of a file. Used to provide meta information
Types
Descriptive
Essential data about the content of a file:
- Authors
- Keywords
- Exchangeable Image File Format
Administrative
Data about management details:
- MAC
- Access rights
Structural Metadata
Data about how components are organized:
- Chapters of ebook
- File size
List
Images/Video/Audio
- EXIF Metadata
- XMP
- International Press Telecommunications Council Metadata
- QuickTime Metadata
- MXF
- ID3
- Dublin Core