Pieces =  6
cksum.aa = 1712740452 1425408
cksum.ab = 2443274288 1425408
cksum.ac = 1020530221 1425408
cksum.ad = 3039538075 1425408
cksum.ae = 1538218043 1425408
cksum.af = 3139972397 905606