private function _decode($text)
    {
        $marc = new $this->record_class($this);

        // Store leader
        $marc->setLeader($text->leader);

        // go through all the control fields
        foreach ($text->controlfield as $controlfield) {
            $controlfieldattributes = $controlfield->attributes();
            $marc->appendField(new File_MARC_Control_Field((string)$controlfieldattributes['tag'], $controlfield));
        }

        // go through all the data fields
        foreach ($text->datafield as $datafield) {
            $datafieldattributes = $datafield->attributes();
            $subfield_data = array();
            foreach ($datafield->subfield as $subfield) {
                $subfieldattributes = $subfield->attributes();
                $subfield_data[] = new File_MARC_Subfield((string)$subfieldattributes['code'], $subfield);
            }
            
            // If the data is invalid, let's just ignore the one field
            try {
                $new_field = new File_MARC_Data_Field((string)$datafieldattributes['tag'], $subfield_data, $datafieldattributes['ind1'], $datafieldattributes['ind2']);
                $marc->appendField($new_field);
            } catch (Exception $e) {
                $marc->addWarning($e->getMessage());
            }
        }

        return $marc;
    }