Pieces =  6
cksum.aa = 2973808257 1425408
cksum.ab = 487531803 1425408
cksum.ac = 1768867833 1425408
cksum.ad = 3572224252 1425408
cksum.ae = 3431679970 1425408
cksum.af = 1296174236 288067