Pieces =  7
cksum.aa = 3378377523 240640
cksum.ab = 3505327096 240640
cksum.ac = 3034717662 240640
cksum.ad = 2382133324 240640
cksum.ae = 3238112550 240640
cksum.af = 3781671106 240640
cksum.ag = 4003477031 137623