Pieces =  6
cksum.aa = 3642305264 1425408
cksum.ab = 3325780356 1425408
cksum.ac = 1602512255 1425408
cksum.ad = 4134340282 1425408
cksum.ae = 3692557140 1425408
cksum.af = 1382998734 717023