Pieces =  6
cksum.aa = 3928640617 1425408
cksum.ab = 4228254214 1425408
cksum.ac = 3481659872 1425408
cksum.ad = 1416688620 1425408
cksum.ae = 3921967508 1425408
cksum.af = 3443766958 1342124