Media Indexing Service can automatically scan multimedia files, such as photos, music, and videos stored on your DiskStation, and compile them into the media library to be indexed by multimedia applications. The applications available at Package Center include Media Server, Video Station, Audio Station, Photo Station, and iTunes Server. Once they are installed on your DiskStation, they will be displayed on the Application field.
Click Re-index to re-construct the index structure of all media files in the indexed folders, both default folders and the ones created by yourselves. The process will be executed in the background.