Pieces =  6
cksum.aa = 3155679231 1425408
cksum.ab = 3139364140 1425408
cksum.ac = 3946668241 1425408
cksum.ad = 326595034 1425408
cksum.ae = 1824332720 1425408
cksum.af = 2046993368 640884