Hacking Extracting Unknown File Types (Vita Visual Novel)

[tnpj]

Hi, I just created my account here, so please bear with me. I'm trying to extract the scripts of a Japanese visual novel I'm tying to translate into English, but every single game file seems to have the same the same file type (.rom).

As far as I know, this is a proprietary extension, and from looking at some hex editors, the files are compressed. I am aware of the rules here, so I will not upload any of the files, so for what it's worth, I've attached a screenshot of what the 'script' file looks like in MadEdit.

I've looked at countless romhacking guides and tutorials, and I've gained an inkling of an understanding of the subject, but in terms of dealing with compressed and/or encrypted files I'm at a complete loss.

Would someone kindly push me in the right direction? I am a complete novice at romhacking (I just want to translate!), but I am willing to learn. Thank you in advance.

 

[AttackOtter]

It'd probably help if people knew what game you were trying to unpack from.

 

[tnpj]

Ao no Kanata no Four Rhythm.

 

[AttackOtter]

Either it's encrypted, or you have to change the encoding from ShiftJIS to one of the unicode types.

 

[tnpj]

you have to change the encoding from ShiftJIS to one of the unicode types.

That was literally the first thing I tried. The file is compressed, so doing this changes nothing.

Apart from the garbled text, there are lines like these (refer to uploaded image) throughout the script file. I have no clue as to what I'm supposed to do with it, though. Any help would be greatly appreciated.

 

[AttackOtter]

Well, I mean, the way you described it made it seem like it itself was a script, not that it was an archive. You're gonna have to find someone who can reverse engineer the format to extract the files.

 

[tnpj]

Yeah, I figured as much. Damn... In any case, thanks for replying, man. I appreciate it.

 

[AttackOtter]

I recommend looking on Zenhax forums, or Xentax (though Xentax is paid).
Zenhax is the QuickBMS home site, and Luigi responds to threads pretty quickly.

 

[tnpj]

Zenhax was extremely helpful. Thank you! Unfortunately, I am still unable to extract the scripts, but at least I'm making some progress

 

[master801]

Send the file to me in a PM, I'll take a look at it.

 

[clienthax]

http://zenhax.com/viewtopic.php?f=9&t=3259&p=18129#p18129

 

[tnpj]

@clienthax Thanks for all the help, man. I'll take a look at that script.

@master801 I'm not able to PM you. You might need to change some settings.