public override string ToString() { StringBuilder xml = new StringBuilder(); xml.Append(base.ToString()); xml.Append(TrackHeaderBox.ToString()); if (MediaBox != null) { xml.Append(MediaBox.ToString()); } if (TrackReferenceBox != null) { xml.Append(TrackReferenceBox.ToString()); } if (EdtsBox != null) { xml.Append(EdtsBox.ToString()); } xml.Append("</box>"); return(xml.ToString()); }