WiiScrubber
Information
A useful app that allows you to 'scrub' away the garbage data of Wii ISOs and in most cases drastically reduces the size of the ISO. However this is not just for smaller storage, the ISOs still work on the Wii AFTER being compressed.
All credits go to Dack for making this program, and how to use it.
Purpose
It allows you to:
1. Open up the Wii iso's and extract individual files from them.
2. Change the iso so that unused areas are overwritten with 0xFFs. This
has the effect of then making the ISO compressable.
Required
You need:
- You will need a copy of the ubiquitous "key.bin" in the same directory.
- You should not need to install any extra runtime files.
- A descrambled wii iso
- Plenty of disc space
- A fair bit of time.
Usage
How to use:
Copy the key.bin file to the same directory as the exe.
Load the software.
Load the ISO file by clicking on the 'load iso' button
What the program is doing appears in the bottom window
Disc filelist appears in the top window as a standard treelist
Name of game and size of the data on the disc appears in top right
How to extract files:
Only one at a time at present
In the treelist click on a file to select
Right click the mouse button
Select 'Save' from the popup menu
The fields on the filename shown are:
name, partition, Offset into decrypted file, Filesize
How to scrub the disc:
Click on the clean and save button
This creates a copy of the loaded ISO with the same name but (compress)
appended to the name before the .ISO part (so SPM.ISO would become
SPM(compress).ISO).
You still need 4.5 Gig of storage at this point but can specify which ddrive etc.
to save it on
Compressing this image should give you a figure close to the size of data
detailed earlier
Comments:
I've tried on quite a few files, checking the files that are then extracted and
all seems correct. But no 100% guarantees can be made that the cleaned ISO will
work. What I tend to do is extract all the files from an uncleaned image using wiitools
and then extract all the same files from a cleaned image and do a windiff on them to
check for any irregularities. There is always the potential that Nintendo will start
checking for these sort of changes in a firmware update. Just be aware.
Bugs/Updates
Limitations/Errors/Bugs/Features/Improvements:
You may notice the 'load' function on the file popup - that would be a target
Multiple file extraction would be more than useful but I thought it was better to
test the extraction function on single files first
I've got an issue where a release version will not work correctly, thats why this release is
a debug build. (*Love* finding those errors)
Yes the Icon is rubbish - one of my trademarks
File size is limited to 4.5 Gig as if the software is on a DL disc it probably needs to be
Some of the extracted Disc titles look odd - not my fault :)
Changes from 1.0:
1. Way of scrubbing changed slightly so that the sector crypto header is left
unchanged. This makes it a bit more difficult to detect but lessens the compressability.
2. Disc Filename display corrected so titles like MoH2 show correctly ;)
Changes from beta test version:
1. Key file now only needs to be in the same directory as the program
2. A progress bar with cancel option when you start scrubbing
3. appended file name changed to (compress) to avoid confusion
4. Clickable URL of gbatemp in about box.
