Pieces =  6
cksum.aa = 3934556460 1425408
cksum.ab = 2064206738 1425408
cksum.ac = 2479547066 1425408
cksum.ad = 1603248837 1425408
cksum.ae = 2197966967 1425408
cksum.af = 1743235353 1097541