c:\test>dir 768941.dat
06/06/2009  03:55     1,625,416,082 768941.dat

c:\test>head 768941.dat
1101077781160   1101077783656   bothDegen
1101077781161   1101077783657   bothChaff
1101077781162   1101077783658   bothDegen
1101077781163   1101077783659   bothChaff
1101077781164   1101077783660    oneChaff
1101077781165   1101077783661   bothChaff
1101077781166   1101077783662    oneDegen
1101077781167   1101077783663   bothDegen
1101077781168   1101077783664   bothChaff
1101077781169   1101077783665   bothDegen

c:\test>wc -l 768941.dat
37800374 768941.dat