Just for fun, I considered what the unpack template for the record stream might be.
  my ($inf, @dat) = unpack 'a4 (L (S/(xx) XX.@2/a XX.x4/a xx))<*', do 
+{ local $/; <DATFILE> };
  while (@dat) {
    my ($ID, $s1, $s2) = splice(@dat, 0, 3);
  }

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Not that it's sensible, practical or robust...

In reply to Re: while behaviour on binary files by oiskuu
in thread while behaviour on binary files by Anonymous Monk

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