What is the Sitecore Media Library used for?

The Sitecore Media Library serves as a central repository for managing media files, such as images, videos, and other digital assets used within a Sitecore site. This component allows users to organize, store, and retrieve media files efficiently, facilitating content creation and site management. Users can categorize media items into folders and apply various metadata to improve searchability and organization. The Media Library is integral for any Sitecore implementation where visual content is a significant part of the user experience, ensuring that all media assets are easily accessible and managed systematically.

The other choices relate to functionalities that do not pertain to the Media Library. Storing logs of site visits is generally handled by analytics or tracking systems, archiving previous versions of content is managed through versioning within the content management framework, and raw data backups would typically be part of database management and not directly linked to the Media Library's purpose.