This revision makes several improvements to the setup of the plugin: [1] the FFI_AAM_ prefix was removed from class and constant names in favor of namespaces, [2] FFI_AAM_Hook_Manager.php was renamed to Hook_Manager.php, [3] Hook_Manager.php no longer adds the install/uninstall hooks but has moved this functionality to audio-archive.php, [4] the Audio_Caching_Manager class was added and can currently read files from the targeted directory and compare them to the files which exist in the database cache, [5] and the installer can create database tables, create the target directory, protect it from viewing with an .htaccess file, and creates and instance of the Audio_Caching_Manager class to cache any existing files in the target directory.