Hey there I was hoping to have some help. #45
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Hi. Actually these files are encrypted and for each ROM file the decryption key is generated from the file path + magic seed, in fact decrypted mameac.2 are a modified ZIP file and Inside which are located a rom files. Here is the example archive with decrypted and converted to regular ZIP 1943u.mameac.2 file |
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thanks but I don't own that game.
…On Fri, Nov 22, 2024 at 4:24 PM Christian Black ***@***.***> wrote:
Hi. Actually these files are encrypted and for each ROM file the
decryption key is generated from the file path + magic seed, in fact
decrypted *mameac.2* are a modified ZIP file and Inside which are located
a rom files. Here is the archive with decrypted and converted to regular
ZIP *1943u.mameac.2* file
1943u_decrypted.zip
<https://github.com/user-attachments/files/17876537/1943u_decrypted.zip>
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I do own mega man the power battles though.
On Fri, Nov 22, 2024 at 8:29 PM Francis Powell ***@***.***>
wrote:
… thanks but I don't own that game.
On Fri, Nov 22, 2024 at 4:24 PM Christian Black ***@***.***>
wrote:
> Hi. Actually these files are encrypted and for each ROM file the
> decryption key is generated from the file path + magic seed, in fact
> decrypted *mameac.2* are a modified ZIP file and Inside which are
> located a rom files. Here is the archive with decrypted and converted to
> regular ZIP *1943u.mameac.2* file
>
> 1943u_decrypted.zip
> <https://github.com/user-attachments/files/17876537/1943u_decrypted.zip>
>
> —
> Reply to this email directly, view it on GitHub
> <#45 (comment)>,
> or unsubscribe
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> .
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sorry I mean thank you I'll try that.
On Fri, Nov 22, 2024 at 8:30 PM Francis Powell ***@***.***>
wrote:
… I do own mega man the power battles though.
On Fri, Nov 22, 2024 at 8:29 PM Francis Powell <
***@***.***> wrote:
> thanks but I don't own that game.
>
> On Fri, Nov 22, 2024 at 4:24 PM Christian Black ***@***.***>
> wrote:
>
>> Hi. Actually these files are encrypted and for each ROM file the
>> decryption key is generated from the file path + magic seed, in fact
>> decrypted *mameac.2* are a modified ZIP file and Inside which are
>> located a rom files. Here is the archive with decrypted and converted to
>> regular ZIP *1943u.mameac.2* file
>>
>> 1943u_decrypted.zip
>> <https://github.com/user-attachments/files/17876537/1943u_decrypted.zip>
>>
>> —
>> Reply to this email directly, view it on GitHub
>> <#45 (comment)>,
>> or unsubscribe
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>> .
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if you could also give me the command for decrypting the zip file
that would be great. thanks
On Fri, Nov 22, 2024 at 8:33 PM Francis Powell ***@***.***>
wrote:
… sorry I mean thank you I'll try that.
On Fri, Nov 22, 2024 at 8:30 PM Francis Powell <
***@***.***> wrote:
> I do own mega man the power battles though.
>
> On Fri, Nov 22, 2024 at 8:29 PM Francis Powell <
> ***@***.***> wrote:
>
>> thanks but I don't own that game.
>>
>> On Fri, Nov 22, 2024 at 4:24 PM Christian Black <
>> ***@***.***> wrote:
>>
>>> Hi. Actually these files are encrypted and for each ROM file the
>>> decryption key is generated from the file path + magic seed, in fact
>>> decrypted *mameac.2* are a modified ZIP file and Inside which are
>>> located a rom files. Here is the archive with decrypted and converted to
>>> regular ZIP *1943u.mameac.2* file
>>>
>>> 1943u_decrypted.zip
>>> <https://github.com/user-attachments/files/17876537/1943u_decrypted.zip>
>>>
>>> —
>>> Reply to this email directly, view it on GitHub
>>> <#45 (comment)>,
>>> or unsubscribe
>>> <https://github.com/notifications/unsubscribe-auth/BD5IRVM6I4ORTMKMIK7ZKND2B6OJZAVCNFSM6AAAAABSILT4BGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIOJUHA2DINRRGQ>
>>> .
>>> You are receiving this because you authored the thread.Message ID:
>>> ***@***.***>
>>>
>>
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It's from Capcom Arcade Stadium
There is currently no command or tool to do this. I need some time to research. :) |
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No problem! whatever you can do also be sure to inform FarmerBB if you have
any more findings.
…On Sat, Nov 23, 2024 at 6:07 AM Christian Black ***@***.***> wrote:
thanks but I don't own that game.
It's from Capcom Arcade Stadium
<https://store.steampowered.com/app/1515950/Capcom_Arcade_Stadium/>
if you could also give me the command for decrypting the zip file that
would be great. thanks
There is currently no command or tool to do this. I need some time to
research. :)
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Btw on PS4 these files are not encrypted and I don't know what it is connected with but Capcom are so weird peeps :D PS: Steam (CAS) version also have DLC's with some decrypted roms:
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That is weird.I don't own a PS4 and I don't think I'd have any space left
for a ps4
…On Sat, Nov 23, 2024 at 11:10 AM Christian Black ***@***.***> wrote:
Btw on PS4 these files are not encrypted and I don't know what it is
connected with but CapCom are so weird peeps :D
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Hello, My name is MysteryPome, I understand that your tool is also able to work with Capcom Arcade 2nd Stadium. I'm friends with FarmerBB on discord and he and I did some research on the dlc games. This was what he told me yesterday, "Hey, yes I did run that tool againist the pak files in Capcom 2nd Arcade Stadium. It looks like the actual ROM data is inside the pak files in the
dlcdirectory. For each one you extract there will be a foldernatives\stm\streaming\romswhere I believe the actual ROM data is. The mainre_chunk_000.pakalso contains ROM data for one of the games, for some reason.I am not sure yet how to convert the ROM data into something that is actually playable in an emulator, but we're at least a step closer now to possibly making that happen"
Do you my good fellow have some answers on that? Thx in advance.
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