public override Hashtable EditorDragDrop(object o)
    {
        if (typeof(MovieTexture).IsAssignableFrom(o.GetType()))
        {
            MovieTexture ac = (MovieTexture)o;

            string path = UnityEditor.AssetDatabase.GetAssetPath(ac.GetInstanceID( ));

            int index = path.IndexOf("Resources/");

            if (index > 0)
            {
                path = path.Substring(index + "Resources/".Length);

                int dot = path.LastIndexOf('.');
                if (dot >= 0)
                {
                    path = path.Substring(0, dot);
                }

                Hashtable hashtable = new Hashtable( );
                hashtable["name"] = path;

                return(hashtable);
            }
        }

        return(null);
    }