Pieces =  6
cksum.aa = 2453786096 1425408
cksum.ab = 2877378229 1425408
cksum.ac = 154355013 1425408
cksum.ad = 4015273837 1425408
cksum.ae = 3438151550 1425408
cksum.af = 2499110644 380914