Youtube info code not working?

This is the code i have. It gets the video id when someone type a certain command with the video id it uses the function but when it gets to Json.Decode(JsonResponse) it returns false instead of true with the values like the title, duration, description.


public bool YouTubeImport(string VideoID)
        {
            try
            {
                WebClient myDownloader = new WebClient();
                myDownloader.Encoding = System.Text.Encoding.UTF8;

                string jsonResponse = myDownloader.DownloadString("https://www.googleapis.com/youtube/v3/videos?id=" + VideoID + "&key=" + ytKey + "&part=snippet");
                JavaScriptSerializer jss = new JavaScriptSerializer();
                var dynamicObject = Json.Decode(jsonResponse);
                var item = dynamicObject.items[0].snippet;

                Title = item.title;

                jsonResponse = myDownloader.DownloadString("https://www.googleapis.com/youtube/v3/videos?id=" + VideoID + "&key=" + ytKey + "&part=contentDetails");
                dynamicObject = Json.Decode(jsonResponse);
                string tmp = dynamicObject.items[0].contentDetails.duration;
                Duration = Convert.ToInt32(System.Xml.XmlConvert.ToTimeSpan(tmp).TotalSeconds);

                Url = "http://www.youtube.com/watch?v=" + VideoID;

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }