function readfile_chunked ($filename) {
        $chunksize = 1*(1024*1024);
        $buffer = '';
        $bytesSent = 0;
        $handle = fopen($filename, 'rb');
        if ($handle === false) {
                report_error("Download failed. IP: $_SERVER[REMOTE_ADDR] FILE: $filename. $error", 0);
                return false;
        }
        while (!feof($handle)) {
                $buffer = fread($handle, $chunksize);
                print $buffer;
                $bytesSent += strlen($buffer);
        }

        fclose($handle);

        if ($bytesSent != filesize($filename)) {
                report_error("Download failed. IP: $_SERVER[REMOTE_ADDR] FILE: $filename. Size mismatch", 0);
                return false;
        }
        else
                return true;

        return true;
}