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 Post subject: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sun Sep 05, 2010 2:06 am 
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Okay i have here a decrypted file from the game uncharted from ps3, problem is it seems to use zlib compression, hopefully it won't be too difficult to write up an extraction script :)

http://www.megaupload.com/?d=7GG7ZKI3


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sun Sep 05, 2010 4:50 am 
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if you use offzip on it it appears they used zlib chunks the start offset if the offset directly after the word zlib.
then it reads zlib chunks till the end of the file.
i am not sure how to read the starting header of the file before the zlib section.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sun Sep 05, 2010 11:50 am 
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okay i extracted 64kb segments, is that normal?

EDITl nvm found out the 1 file mode :)


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 2:00 am 
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I researched this more with a friend and an extractor should be on its way soon :)


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 2:00 am 
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Hey nice, looking forward to it :)


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 6:25 pm 
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The contents of this post was deleted because of possible forum rules violation.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 7:02 pm 
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your extractor just crashes on me.
this might help.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 7:25 pm 
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Which .psarc file did you try it on?


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 7:33 pm 
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a lot of different ones they just crash.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 7:41 pm 
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Unpacker Error:
Image


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 7:53 pm 
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chrrox wrote:
a lot of different ones they just crash.

Hmmm... and all from Uncharted? I only have access to actor20.psarc, and the chunk posted by OrangeC. So if the file isn't using zlib or the zlib block sizes are greater than 64k, then it won't work.


Researchman wrote:
Unpacker Error:
Image

Is that the file OrangeC posted? If so, that's only a chunk of the actual music.psarc file.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 9:47 pm 
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so is there a fix for this?


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 10:24 pm 
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OrangeC wrote:
so is there a fix for this?

Have you tried it? It should work on any zlib compressed psarc files from UDF. For files that aren't zlib, if someone could post a small chunk of the file, I'll try to update the extractor for that type of compression.


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 10:27 pm 
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i tried it on files that were zlibbed at the beginning but the data was uncompressed in the middle to the end. it still crashed

i will up a sample in a bit.

what do you mean from UDF?


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 Post subject: Re: Uncharted Drakes fortune PS3 .PSARC zlib
PostPosted: Sat Sep 11, 2010 10:51 pm 
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The tool works great but only on the Uncharted psarc.


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