while (<filehandle>) is implicitly while (defined ($_ = readline filehandle)) which reads a very long line. You probably wanted to check whether there is still data to read, which is done by the eof function.

Solution: use something like this: while (!eof(perlIN)).

In reply to Re: Looping through a binary file by aitap
in thread Looping through a binary file by Anonymous Monk

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