Path: chuka.playstation.co.uk!scea!sumner From: sumner@austin.metrowerks.com (Joel Sumner) Newsgroups: scee.yaroze.mydemos Subject: Re: Memory Card file editor Date: Fri, 23 Jan 1998 11:23:45 -0600 Organization: Metrowerks Lines: 24 Message-ID: References: <34C68D16.446B@peace.co.nz> <34C8249D.6EC5@charlie.cns.iit.edu> NNTP-Posting-Host: mtwks153.metrowerks.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: Yet Another NewsWatcher 2.4.0 It's very possible that they encrypt the data. If that is so, even a 1 bit change to the source data would cause a complete change in the encrypted version (depending upon the algorithm). In article <34C8249D.6EC5@charlie.cns.iit.edu>, fedeedw@charlie.cns.iit.edu wrote: >James Russell wrote: >> >I tried "save", run the game for 1 second, "save" again, to compare >the files, expecting to see one location change by "1" (the time >value.) BUT: they are *radically* different. Like 128 bytes or more >are different. How much "save" data could really change in 1 game >second? Sheesh! > >And to make it worse, it seems to have a CRC or checksum or something, >because when I tweak the locations that I think are Gil (money) for >example, my expected value shows up in the game "load from file" screen, >but it won't load the tweaked save file, complaining about "bad or >corrupt save file" or something like that. -- PlayStation Development Tools Dude Metrowerks