Pieces =  7
cksum.aa = 2774917667 240640
cksum.ab = 2355628802 240640
cksum.ac = 3425435810 240640
cksum.ad = 2121421224 240640
cksum.ae = 3571973388 240640
cksum.af = 2699054972 240640
cksum.ag = 944517956 84245