Pieces =  6
cksum.aa = 3088488426 1425408
cksum.ab = 3189436077 1425408
cksum.ac = 1089524435 1425408
cksum.ad = 3997228595 1425408
cksum.ae = 4110067016 1425408
cksum.af = 2127197917 3064