Ok... That is my script

#!/usr/bin/perl -w

use Fcntl;
use Getopt::Std;
use constant DIR => "/d/testing"; 
use constant MAX => 11;

my $prog = $0;
$prog =~ s|.*/||;

my %opts;
getopts('o:', \%opts);
my $cmd = $opts{o} || 1;

my @date = localtime(time);
my $dd = sprintf ("%02d", $date[3]);
my $mm = sprintf ("%02d", $date[4] + 1);
my $yy = sprintf ("20%02d", $date[5] % 100);
my $yymmdd = "$yy$mm$dd";

my @a;
my $bnum;
my $template = "A12 A4 A20 A20
                A2  A2 A2  A2
                A12 A4 A24 A24";

unshift (@ARGV, "-") unless @ARGV;
for my $mfile (@ARGV) {
    $file = $mfile;
    open (IN, "< $file") or die ("Can't open $file: $!\n"); 
    while (<IN>)
    {
         @normalDb = ();
         @errorDb = ();

         s/\s//g;
         $dd = $_;

         my @a = unpack($template, $dd);
         $sdate = $a[8];
         $state = $a[4];
         $err   = $a[7];

         $bnum  = substr($a[3], skip_zero($a[3]));

         substr($dd, 37, 0) = '00' if ( $state eq '02' );
         substr($dd, 62, 3) = '01' if ( $sdate !~ /^0/ && $err !~ /^0/
+ );
         substr($dd, 62, 3) = '01' if (length($dd) == 131);

         #The 2 last character of lines must be number
         if ($dd !~ /\d\d$/ || $dd =~ /<u$/ ) {
                $dd =~ s/..$/00/g;
         }

         #insert X for the rest 
         if ( length($dd) < 130 ) {
                 $dd = insert0($dd);
         } else {
                 $dd = substr($dd, 0, 130);
         }

         if ( length($dd) == 130 ) {
                 push (@normalDb, $dd);
         } else {
                 push (@errorDb, $dd);
         }

         if ( @normalDb > 0 ) {
             my $path = "$file\.ok";

             open (NORMAL, "+>> $path") or die $!;
                  for (@normalDb) { print (NORMAL "$_\n") };
             close (NORMAL);
         }

         if (@errorDb > 0 ) {
              my $path = "$file\.error";

              open(ERROR, "+>> $path") or die $!;
                   for (@errorDb) { print (ERROR "$_\n") };
              close (ERROR);
         }
    }
    close (IN);
}

sub skip_zero
{
        my ($a) = @_;
        my $j = 0;

        foreach my $i (split //, $a)
        {
                $j++;
                return $j if ($i > 0);
        }
}

sub insert0
{
        my ($tmp) = @_;
        my @data;

        push(@data, $tmp);

        for (my $i = length($tmp); $i < 130; $i++) {
                push(@data, "X");
        }

        return sprintf ("%s", join('', @data));
}

die;
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As your info, the the file size is about 507156496 bytes....