More Faster
Extract the GARC, but compressed.
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With GARC Tool, open a GARC, Press Ctrl, and hit Process in same time.
You will extract the GARC with compressed files.
Now, the file are compressed. You can't open any files in Ohana.
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Open GARC Tool again.
This time, open a compressed file (like 279.bin).
You are asked if you want to delete the compressed file after the extraction.
If asked, hit Yes.
You have a new file (in our case, dec_279.164).
For compress this file again, open GARC Tool, open the dec_279.164 file, hit Process.
You are asked if you want to delete the decompressed file after the extraction.
If asked, hit Yes.
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Like this, not even 2mn for rebuild the GARC xD