Pieces =  6
cksum.aa = 3867212800 1425408
cksum.ab = 1253177110 1425408
cksum.ac = 2954063751 1425408
cksum.ad = 3605897746 1425408
cksum.ae = 123219381 1425408
cksum.af = 1632273092 141531