As others have pointed out when $ch gets the character '0' (zero) the while expression is false and the loop ends. Another way to do what you want: 
$/ = \1;  # Set Input Record Separator to one byte

while ( my $ch = <FILE> ) {

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This will work no matter what the value of $ch is.

In reply to Re: Unable to read in a .bin file. by jwkrahn
in thread Unable to read in a .bin file. by begae60

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