>Whats an LRC?

Hi Kevin,

I was curious too, so I did a little research. This is what I found from:
http://www.dict.org
Just type or copy/paste "Longitudinal Redundancy Check" you will get the following:

Longitudinal Redundancy Check
       
           (LRC, Block Redundancy Check) An
          error checking method that generates a longitudinal parity
          byte from a specified string or block of bytes on a
          longitudinal track.
       
          The longitudinal parity byte is created by placing individual
          bytes of a string in a two-dimensional array and performing
          a Vertical Redundancy Check vertically and horizontally on
          the array, creating an extra byte.  This is an improvement
          over the VRC because it will catch an odd number of errors in
          the individual characters of the string.
       

Dawa