public void CreateOneItemWithMediaGroupAndMediaOptions(Rss20 rss)
        {
            // create the channel
            CommonSetCoreChannelPropertiesUsingObjects(rss, "CREATE CHANNEL WITH EXTENDED PROPERTIES PLUS ONE ITEM WITH EXTENSION AND ONE MEDIA GROUP WITH MEDIA OPTIONS");

            // set using extended properties objects, no media
            CommonSetExtendedChannelPropertiesUsingObjects(rss);

            // define new item
            RssItem itm = new RssItem();

            // add the core item
            CommonSetCoreItemPropertiesUsingObjects(itm);

            // add the extended item objects
            CommonSetExtendedItemPropertiesUsingObjects(itm);


            RssMediaGroup mg = new RssMediaGroup();



            // Create the media content item
            RssMediaContent mc = new RssMediaContent();

            mc.url          = "http://something.com/media/movie.mp4";
            mc.fileSize     = 1000000;
            mc.type         = "video/mp4";
            mc.medium       = "video";
            mc.isDefault    = true;
            mc.expression   = "full";
            mc.bitrate      = 128;
            mc.frameRate    = 30;
            mc.samplingrate = 44.1;
            mc.channels     = 2;
            mc.duration     = 185;
            mc.width        = 400;
            mc.height       = 200;
            mc.lang         = "en";
            CommonSetMediaPropertiesUsingObjects(mc);
            mg.AddMediaContentItem(mc);


            // Create the media content item
            mc              = new RssMediaContent();
            mc.url          = "http://something.com/media/a-better-movie.mp4";
            mc.fileSize     = 2000000;
            mc.type         = "video/mp4";
            mc.medium       = "video";
            mc.isDefault    = true;
            mc.expression   = "full";
            mc.bitrate      = 128;
            mc.frameRate    = 30;
            mc.samplingrate = 44.1;
            mc.channels     = 2;
            mc.duration     = 185;
            mc.width        = 400;
            mc.height       = 200;
            mc.lang         = "en";
            CommonSetMediaPropertiesUsingObjects(mc);
            mg.AddMediaContentItem(mc);

            //       CommonSetMediaPropertiesUsingObjects(mg);



            itm.AddMediaGroup(mg);



            // add the item
            rss.channel.AddItem(itm);
        }