Steins;Gate Hiyoku Renri no Darling (PSP) Translation Help

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I've started trying to do a fan translation for Steins;Gate: Hiyoku Renri No Darling (Darling of Loving Vows). The game was never released on PC, so I have a suspicion that this will be the easiest to translate. Also, PPSSPP is a great emulator and thus anyone with a PC could theoretically play the translation.

 

I've hit a bit of a roadblock in that I'm unable to decipher the text files used in the game. I've managed to decrypt the main data files (typical CPK encryption), as well as the packed files at that level (CPK archive with CRILAYLA encryption).

 

One of these archives, labeled "VO1.cpk", contains over 10,000 files as follows - 01 (~100KB), 02 (2048B), 03 (~100KB), 04 (2048B)... Note that I'm unable to get the filename because of the type of archive. The odd-numbered files are all HCA-encoded audio files, and I'm able to correctly correspond each with dialogue in the game. Looking at the even-numbered files with a Hex Editor, they appear to be the text files used in the game.

 

Unfortunately, I'm unable to correlate these values with the actual Kanji/Katakana symbols that appear for the given dialogues, so I won't be able to create a mapping of any kind. It may even be possible that these files are also encrypted, although they don't share a common header. I thought someone here may have some experience with this and be able to help me in that regard. Listed below are the binary files, as well as the dialogue that I am almost certain they represent.

 

Dialogue 1 - Binary: http://pastebin.com/JmfzXm4L | Image: http://i.imgur.com/h8r9na5.jpg 

Text: 時間は流転し、死へ臨む存在とともに生まれ消えてゆく。有限

 

Dialogue 2 - Binary: http://pastebin.com/UPbBLhxs | Image: http://i.imgur.com/4Lw4iS3.jpg 

Text: 一方で時間は過去から未来へと移ろい行くのでわなく、超自然的に悠然とただそこに在る。　無限。

 

Dialogue 3 - Binary: http://pastebin.com/umHyZMbE | Image: http://i.imgur.com/S3eWMgO.jpg

Text: 智をしる者は智に溺れ、智を知らぬ者は泳ぐ術を知らず

 

Dialogue 4 - Binary: http://pastebin.com/sGXH1g46 | Image: http://i.imgur.com/I3xk8i4.jpg

Text: 知らぬことは知らぬと認めることこそが、髪へと近づく第一歩となるーー

 

The next step is just to figure out how these text files are formatted/read so we can replace the codes for the current symbols with ones with English characters (or possibly change the font images if necessary).