for ($i = 0; $i < $len; $i++) {
                        if ($framedata[$i] != "\x00") {
                            $thisfile_id3v2['padding']['valid'] = false;
                            $thisfile_id3v2['padding']['errorpos'] = $thisfile_id3v2['padding']['start'] + $i;
                            $this->warning('Invalid ID3v2 padding found at offset '.$thisfile_id3v2['padding']['errorpos'].' (the remaining '.($thisfile_id3v2['padding']['length'] - $i).' bytes are considered invalid)');