Pieces =  6
cksum.aa = 3431681824 1425408
cksum.ab = 1332380163 1425408
cksum.ac = 3733687804 1425408
cksum.ad = 1551321360 1425408
cksum.ae = 3560233056 1425408
cksum.af = 1912437833 247389