code: public int read(byte[] Data, int NumBytes)
  	{
  		int retcode = DDC_SUCCESS;
  		try
  		{
  			file.read(Data, 0, NumBytes);
  		}
  		catch (IOException ioe)
  		{
  			retcode = DDC_FILE_ERROR;
  		}
  		return retcode;
  	}
docs: Read NumBytes data.