Quality of video with youtube api 2.0
===

I want to get quality of videos. i saw that i could get quality with yt.playerconfig but I use youtube api 2.0 and I cant find how to get quality of videos.. here is my code

     List<VideoList> FillVideoInfo(IEnumerable<Video> videos)
        {
            
            List<VideoList> myV =
             videos.Select(v=> new VideoList {                                             
                                                    AuthorName = v.Author,   
                                                    Categories = v.Tags[0].Value,
                                                    Duration ="yok", // v.Contents[0].Duration
                                                    Tags ="tag yok",
                                                    Link = v.AtomEntry.AlternateUri.ToString(),
                                                    PublishedDate = v.AtomEntry.Published,
                                                    RatingAverage = v.RatingAverage,
                                                    Title = v.Title,
                                                    ViewCount = v.ViewCount,
                                                    ThumbNail =  "http://img.youtube.com/vi/"+ v.VideoId +"/default.jpg"
                                                    
                                                    }).ToList<VideoList>();
         
            return myV;            
        }


VideoList is my own class.. and video is google.youtube.video 
I saw media.contents.  format.. but i am not sure is true or not ? 


