Pieces =  6
cksum.aa = 3308020659 1425408
cksum.ab = 1179994948 1425408
cksum.ac = 2397202515 1425408
cksum.ad = 3654772455 1425408
cksum.ae = 911619316 1425408
cksum.af = 4075744688 742308