Thanks DL, for some reason it doesn't work right for NFS MW 2005 (save says it's corrupted). 360Rev is the only tool that can fix the checksum, the downside is online is required for it to work. I also was able to find the stand alone editor by itself but it does the same thing, it says Resign Successful but the game says it corrupt. I guess it wasn't meant for the 2005 version.