Media Library Sync is a tool for Synchronizing a large media library from a master source to multiple destinations. It allows you to specify which parts of the library you want to sync on which devices. It allows sub folders in the source root folder to be manually matched up with sub folders in the destination root folder, making it possible for sub folders with different names to be paired, and for sub folders to be omitted from the sync. It has a facility for specifying which file types should be sync'd according to their file extension. Filters for source folders that begin with a particular word or phrase. It allows the user to include or exclude specific files on each sync and exclude files from the update which have a time difference less than a specified amount.