Pieces =  6
cksum.aa = 3708195930 1425408
cksum.ab = 2172911536 1425408
cksum.ac = 1820674365 1425408
cksum.ad = 1961040862 1425408
cksum.ae = 2158037244 1425408
cksum.af = 1037758060 165997