From WikiTemp, the GBAtemp wiki
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==Information==
 
==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.
+
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. The project is still in development. Newest version is v.10a beta.
  
 
'''All credits go to Dack for making this program, and how to use it.'''
 
'''All credits go to Dack for making this program, and how to use it.'''
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==Required==
 
==Required==
You need:
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You need:# You will need a copy of the ubiquitous "key.bin" in the same directory.
 
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# You should not need to install any extra runtime files.# A descrambled wii iso
* You will need a copy of the ubiquitous "key.bin" in the same directory.
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# Plenty of disc space
 
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# A fair bit of time.
* You should not need to install any extra runtime files.
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* A descrambled wii iso
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* Plenty of disc space
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* A fair bit of time.
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==Usage==
 
==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
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# How to extract files:
 +
* Only one at a time at present
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* In the treelist click on a file to select
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* Right click the mouse button
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* Select 'Save' from the popup menu
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* 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
  
How to use:
+
==Updates==
 
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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:
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I've tried on quite a few files, checking the files that are then extracted and
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all seems correct. But no 100% guarantees can be made that the cleaned ISO will
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work. What I tend to do is extract all the files from an uncleaned image using wiitools
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and then extract all the same files from a cleaned image and do a windiff on them to
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check for any irregularities. There is always the potential that Nintendo will start
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checking for these sort of changes in a firmware update. Just be aware.
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==Bugs/Updates==
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Limitations/Errors/Bugs/Features/Improvements:
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You may notice the 'load' function on the file popup - that would be a target
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Multiple file extraction would be more than useful but I thought it was better to
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test the extraction function on single files first
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I've got an issue where a release version will not work correctly, thats why this release is
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a debug build. (*Love* finding those errors)
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Yes the Icon is rubbish - one of my trademarks
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File size is limited to 4.5 Gig as if the software is on a DL disc it probably needs to be
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Some of the extracted Disc titles look odd - not my fault :)
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Changes from 1.0:
 
Changes from 1.0:
  
 
1. Way of scrubbing changed slightly so that the sector crypto header is left
 
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.  
 
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 ;)
 
2. Disc Filename display corrected so titles like MoH2 show correctly ;)
 
 
  
 
Changes from beta test version:
 
Changes from beta test version:
 
 
1. Key file now only needs to be in the same directory as the program
 
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
 
2. A progress bar with cancel option when you start scrubbing
 
 
3. appended file name changed to (compress) to avoid confusion
 
3. appended file name changed to (compress) to avoid confusion
 
 
4. Clickable URL of gbatemp in about box.
 
4. Clickable URL of gbatemp in about box.

Revision as of 01:25, 25 February 2008

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. The project is still in development. Newest version is v.10a beta.

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.

  1. You should not need to install any extra runtime files.# A descrambled wii iso
  2. Plenty of disc space
  3. A fair bit of time.

Usage

  1. 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
  1. 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
  1. 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

Updates

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.