Riva Slider comes with great backup functionality. Check out the two different kinds below.
Via the ‘Global Settings’ menu, you can export all of your plugin settings (including slideshows) into a .txt file which your browser will download. To restore the plugin at any time, simply paste the code from this .txt file into the ‘Import’ text-box and all of the settings will be extracted from it. This even works if you import settings from a previous version of the plugin. Brilliant!