Thanks, but I've already implemented that my other post. I even optimized it to limit the amount of bytes that are scanned twice. 
$block = substr($block, -($longuest_sig_len-1)) .    $_;
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^
            Minimal portion of last block         New block

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In reply to Re^3: Binary Comparision by ikegami
in thread Binary Comparision by punklrokk

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