Pieces =  6
cksum.aa = 3691910014 1425408
cksum.ab = 1047396640 1425408
cksum.ac = 2760260775 1425408
cksum.ad = 1662708226 1425408
cksum.ae = 4261335145 1425408
cksum.af = 1572326671 427919