protected internal String ToXMLFragment()
{
StringBuilder xml = new StringBuilder();
List<Disc> discList = this.Disc;
foreach (Disc disc in discList) {
xml.Append("<Disc Number=" + "\"" + disc.Number + "\"" + ">");
xml.Append(disc.ToXMLFragment());
xml.Append("</Disc>");
}
return xml.ToString();
}