GameCube memory card copy

NES, SNES, N64, Gamecube, Wii
gtmtnbiker
Next-Gen
Posts: 4320
Joined: Fri Jan 09, 2009 1:14 pm
Location: Massachusetts

Re: GameCube memory card copy

Post by gtmtnbiker »

Gnashvar wrote: Thanks I haven't tried the methods mentioned above, but I'm thinking it's not going to be possible even with a modded GC. From what I read so far it seems the game encrypts the save with the number given to the card when format is given or something like that. So when the game tries to decrypt the save shows up as corrupted.

So I'm basically giving up on it. Now I'm trying to figure out how to copy saves from the web to a memory card.
The above has intrigued me. I'll have to try creating the default save on two different cards and then comparing the two to see what's different. It might be possible to swap out saves assuming that you put the key in the right spot. If I find some time, I'll see if I can poke around with a binary editor/difference tool.
Gnashvar
128-bit
Posts: 846
Joined: Tue Sep 01, 2009 10:36 am

Re: GameCube memory card copy

Post by Gnashvar »

gtmtnbiker wrote:
Gnashvar wrote: Thanks I haven't tried the methods mentioned above, but I'm thinking it's not going to be possible even with a modded GC. From what I read so far it seems the game encrypts the save with the number given to the card when format is given or something like that. So when the game tries to decrypt the save shows up as corrupted.

So I'm basically giving up on it. Now I'm trying to figure out how to copy saves from the web to a memory card.
The above has intrigued me. I'll have to try creating the default save on two different cards and then comparing the two to see what's different. It might be possible to swap out saves assuming that you put the key in the right spot. If I find some time, I'll see if I can poke around with a binary editor/difference tool.
From what I've read people have been hoping for this miracle to happen if you can do it you will make many people happy.

Found this thread with some info on hex http://www.tehskeen.com/forums/showthread.php?p=25464

It seems the game uses the serial of the card and the format as a seed to encrypt the entire string of data.
Thanks everyone...
gtmtnbiker
Next-Gen
Posts: 4320
Joined: Fri Jan 09, 2009 1:14 pm
Location: Massachusetts

Re: GameCube memory card copy

Post by gtmtnbiker »

Thanks for the pointer to the thread at tehskeen.com. It seems like this would be an interesting puzzle to solve. The only experience I have with saves is with Paper Mario. I was playing a backup copy of the game and I would get DRE with certain "cut scenes". I wanted to try the PAL version but the save wouldn't work. I had to dump it and hex-edit to change the game-ID in the save. Then it worked for the PAL version. That was pretty simple but Animal Crossing/F-Zero protected saves seem like it would be a good puzzle to solve.

I'll see what I can find.
danna
Newbie
Posts: 1
Joined: Tue Nov 17, 2009 10:01 am

Re: GameCube memory card copy

Post by danna »

Thanks for all the info in this thread. I don't really know much about GameCube since i just bought it and so far this forum has been helping me a lot with the issues i have so far.


Regards,
Danna
Ordinateur portable pas cher
Gnashvar
128-bit
Posts: 846
Joined: Tue Sep 01, 2009 10:36 am

Re: GameCube memory card copy

Post by Gnashvar »

I tried some of the tricks and all I got was 10 minutes of Mr. Resetti chewing me out because I had to reset. I'll keep looking for other methods.
Thanks everyone...
Post Reply