// Churn through the byte stream just to extract the XML
internal static string ReadNextSurrogateXml(GZipStream stream, UnicodeEncoding encoder)
{
var temp = new byte[16];
if (stream.Read(temp, 0, 16) <= 0)
return null;
var guid = new Guid(temp);
string className = encoder.GetString(stream.ReadBytes(stream.ReadInt()));
byte[] xmldata = stream.ReadBytes(stream.ReadInt());
long id = stream.ReadLong();
return UnicodeEncoding.UTF8.GetString(xmldata);
}