Pieces =  6
cksum.aa = 1768123396 1425408
cksum.ab = 997229354 1425408
cksum.ac = 1585138240 1425408
cksum.ad = 3390608993 1425408
cksum.ae = 3025717546 1425408
cksum.af = 4149508137 705400