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 Wrong checksums
Argument: ROM data , Closed by: root
lmello @ 2011-09-04 11:21:46

The following NES titles:

Caveman Games
Field Combat
Lagrange Point

have some problems. If corrected by cmpro using the current dat files, Caveman Games and Lagrange Point will get deleted, and Field Combat and Galaxian are given wrong headers, making them unplayable.
BigFred @ 2012-01-13 10:12:07

There is probably something wrong with your files, maybe they are headerless or something similar causing some problems. The dat does not affect the header values at all.