Pieces =  6
cksum.aa = 3090174761 1425408
cksum.ab = 603048015 1425408
cksum.ac = 4049238397 1425408
cksum.ad = 1226257630 1425408
cksum.ae = 3737534563 1425408
cksum.af = 1305554495 1088810