Hacking Crediar DiscU a tool that can extract Wii U images.

nexusmtz

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is it possible to use discu to create a wud again.?
No, discu doesn't provide that feature, and I'm not aware of any utility that does. It seems a little pointless to turn a 500MB game into 23GB when you can't write the image back to disc, and if you did, you would have built the layout without regard to how it was originally on the disc, so it wouldn't be the same as a disc copy anyway.
 
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papermanzero

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The issue I have: I would like to convert digital titles (e.g. Star Fox Guard EU) into a disc title.
I like to have one compact file instead of several files, which makes file handling and the archiving more easy.
A wud can be converted to a wux, so the size would be small as well.
 

nexusmtz

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The issue I have: I would like to convert digital titles (e.g. Star Fox Guard EU) into a disc title.
I like to have one compact file instead of several files, which makes file handling and the archiving more easy.
A wud can be converted to a wux, so the size would be small as well.
I think it's going to take a use for it on the WiiU before someone will take the time to write it.

EDIT: You could make a homebrew request if you'd like.
 
Last edited by nexusmtz, , Reason: Forgot the homebrew req link

papermanzero

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I think it's going to take a use for it on the WiiU before someone will take the time to write it.

Being honest. The WiiU is a console, which a) has not any big interest and b) is not as popular as cemu.
For sure the WiiU users appreciate the homebrew stuff. But the interesting part is how to archive the data in a mid or long term (which makes 'wux' great).
Handling folders and files in a "rpx format" is not very useful to archive digital-only titles. This is why already many users (reddit, gbatemp etc.) are looking for such a solution.
Tools like DiscU shall normally always consider how to turn back to the original file or how to covert files in both directions.
Using an extraction tool like winrar to extract files but not able to compress files, would also be not very useful.

But anyway, I have to look for another solution then.
Let's see maybe WUDcompress could provide the solution I am looking for.
 
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nexusmtz

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For sure the WiiU users appreciate the homebrew stuff. But the interesting part is how to archive the data in a mid or long term (which makes 'wux' great).
Preservation is interesting, but shoving a partial representation (rpx/loadiine format) of a title into a container that it was never originally in isn't interesting - it's just an exercise. People who are into hacking and developing for consoles aren't typically interested in pushing around bytes if doing so isn't going to help them in any way.
Let's see maybe WUDcompress could provide the solution I am looking for.
It doesn't, but that doesn't mean its author couldn't.
 

drvipej

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help me with specific instructions please...tried 3 or 4 different games and the same issue

I run this:
DiscU.exe titlekey.bin game.wud ckey.bin

Using the correct title key from the web site for sure in titlekey.bin
Using the correct WiiU Common Key in ckey.bin (starting wit D ending with 6)
Renamed to game.wud

Incorrect common key it keeps telling me..

Am I blind?
 

nexusmtz

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Using the correct WiiU Common Key in ckey.bin (starting wit D ending with 6)
If you're using version 4.1b (not on this site) you don't need the common key. If you're using the version in the OP, you have to provide the key as a binary file, not a text file. Paste the key into a Hex Editor like HxD so it is the actual binary of the key instead of the hex character representation. If you pasted the key into notepad, you've made it incorrectly.

If you already have python installed on your machine, you could use that instead of HxD. (quote has been modified to reflect ckey.bin instead of disckey.bin)
Code:
python -c "import binascii; open('ckey.bin', 'wb').write(binascii.unhexlify('<pasteyourkeyhereinbetweenthequotes>'.replace(' ','')))"
works on mac,windows,linux with python installed. remove everything between the single quotes and paste the ascii key in. it will crap out the appropriate formatted .bin key file
 
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drvipej

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If you're using version 4.1b (not on this site) you don't need the common key. If you're using the version in the OP, you have to provide the key as a binary file, not a text file. Paste the key into a Hex Editor like HxD so it is the actual binary of the key instead of the hex character representation. If you pasted the key into notepad, you've made it incorrectly.

If you already have python installed on your machine, you could use that instead of HxD. (quote has been modified to reflect ckey.bin instead of disckey.bin)


I am using 4.1b.
I have used the same one before successfully.
And I am using a HexEditor
 

nexusmtz

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I am using 4.1b.
I have used the same one before successfully.
And I am using a HexEditor
If you're using 4.1b, don't specify a ckey.bin
Code:
C:\DiscU_4.1b-cred>discu
DiscU v 4.1b by crediar
Built: 00:42:46 Oct 28 2016
It is not allowed to resell, rehost, redistribute
or include this file in any packages!

Usage:
 DiscU.exe game.key game.wud [c]

 c: extract content files only
 
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drvipej

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If you're using 4.1b, don't specify a ckey.bin
Code:
C:\DiscU_4.1b-cred>discu
DiscU v 4.1b by crediar
Built: 00:42:46 Oct 28 2016
It is not allowed to resell, rehost, redistribute
or include this file in any packages!

Usage:
 DiscU.exe game.key game.wud [c]

 c: extract content files only

Mine is the same..
DiscU v 4.1b by crediar
Built: 00:42:46 Oct 28 2016
It is not allowed to resell, rehost, redistribute
or include this file in any packages!

I do this now. The titltekey.bin is correct.
DiscU.exe titlekey.bin game.wud c


getting this with 4 different games.. :( with different title keys ofcourse
Either the key is wrong or this is not a valid Wii U image.(partinfo)
 

nexusmtz

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Either the key is wrong or this is not a valid Wii U image.
What is the exact size of your titlekey.bin and game.wud in bytes? Where did the key come from, and where did the wud come from (did you rip it yourself, or was it in multiple parts) What did you rename to game.wud?
 
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drvipej

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What is the exact size of your titlekey.bin and game.wud in bytes? Where did the key come from, and where did the wud come from (did you rip it yourself, or was it in multiple parts) What did you rename to game.wud?

titlekey is 1kb
game is 24GB
key came from the key site

just worked it out.... did it differently

I didn't edit the titlekey.bin

I used DiscU.exe <file key I had with game>.key game.wud c
 
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Sm4sh_Modder666

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DiscU_Stopped-Working.png
Whenever I use DiscU the application crashes

i use discu.exe game.key game.wud c

Any help if possible, Thank you.
 
Last edited by Sm4sh_Modder666,

cadaveros

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Hi, im cant use DiscU and Uwizard too. let me show how could do this.
find that tool on google
VGMToolbox
HxD Freeware Hex and Disk Editor


Will already have to have Wii U Common Key and Game Title Key.
1-Install and open VGMToolbox
2-Navigate to the location vgmtoolbox folder > external folder> wiiu folder.
3-Create a new text file and call it ckey.bin.
4-Open HXD Editor and drag and drop ckey.bin into HxD Editor.
5-Paste the Wii U Common Key. Click OK on the prompt on the file size change notification.
6-Navigate to the directory where the .wud file you’re wanting to extract is located and create a new text file and call it disckey.bin.
7-Drag and drop disckey.bin into HxD Editor and paste the title key for the game you’re wanting to extract. Click OK on the prompt on the file size change notification.
8-Open VGMToolBox and navigate to Misc. Tools > Extraction Tools > Generic > ISO/Archive Extractor.
9-Drag and drop the .wud file into VGMToolBox. If all goes well you should see the contents.
10-Browse the drives until you find one with code, content, and meta folders and Right Click the parent folder ( \ ) and extract it to your desired location.
Done.
All credits go to thegeekfix for the original post.
 

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