private void PlayMP3Preview (object Sender, UbuntuOne.PreviewMp3Args a)
{
Log.Debug ("U1MS: Playing preview: ", a.Url );
TrackInfo PreviewTrack = new TrackInfo ();
PreviewTrack.TrackTitle = a.Title;
PreviewTrack.ArtistName = Catalog.GetString ("Track Preview");
PreviewTrack.AlbumTitle = Catalog.GetString ("Ubuntu One Music Store");
PreviewTrack.Uri = new SafeUri (a.Url);
ServiceManager.PlayerEngine.OpenPlay (PreviewTrack);
ServiceManager.PlaybackController.StopWhenFinished = true;
}