Pieces =  6
cksum.aa = 702159906 1425408
cksum.ab = 1798220101 1425408
cksum.ac = 2906694829 1425408
cksum.ad = 2785706534 1425408
cksum.ae = 3399421704 1425408
cksum.af = 2464814157 151812