---
title: Non-App-Specific Media Source Identifiers
framework: medialibrary
role: collectionGroup
role_heading: API Collection
path: medialibrary/non-app-specific-media-source-identifiers
---

# Non-App-Specific Media Source Identifiers

Identifiers for media sources which do not correspond to apps. Used with Load Options Keys.

## Topics

### Constants

- [MLMediaSourceMoviesFolderIdentifier](medialibrary/mlmediasourcemoviesfolderidentifier.md)
- [MLMediaSourceCustomFoldersIdentifier](medialibrary/mlmediasourcecustomfoldersidentifier.md)
- [MLMediaSourceAppDefinedFoldersIdentifier](medialibrary/mlmediasourceappdefinedfoldersidentifier.md)

## See Also

### Constants

- [Load Options Keys](medialibrary/load-options-keys.md)
- [Media Source Identifiers](medialibrary/media-source-identifiers.md)
- [Well-Known Folder Identifiers](medialibrary/well-known-folder-identifiers.md)