Taiko no Tatsujin V Version (Full Game) - L7C, VTXP

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
tiduscrying
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Joined: Fri Sep 09, 2016 4:43 pm

Taiko no Tatsujin V Version (Full Game) - L7C, VTXP

Post by tiduscrying »

Hi everyone. Taking a look at the files for Taiko V version in order to start working on a fan translation for the game. I worked on the two most recent Taiko no Tatsujin titles for the 3DS and helped release english patches for both of them. DarkSynopsis is a member of the team; he posts here from time to time and already posted about the demo actually, which led to some interesting information. I am also referencing this post on Tales of Hearts R since it has a common container with Taiko V.

Taiko V's main game data is contained in an L7C file, which opens up in HxD with "L7CA" at the top of the file. Using the script from the Tales of Hearts R discussion, I was able to extract the files from the L7C container successfully. Some of them were put in a folder normally but some were also put in a folder titled "unknown_compression," but when I took a look in there, all the files seemed to be there in tact. It seems like all of the files dumped properly, but I could be wrong.

QuickBMS had this to say:

Code: Select all

- 2960 files found in 17 seconds
  coverage file 0    99%   602268021  602883836

It also printed where it placed what files, but that's a long list so I am not copying it here.

L7C container aside, I took a look at the files. The textures are listed as .txp files, similar to how the 3DS game's textures are listed. But the 3DS .txp files were .ctpk files under LZ11 encryption. These files seem to be .vtxp files, which I can't find much info about. I found a program called Scarlet on GitHub that has support to extract files from various vita filetypes, but it doesn't recognize the .vtxp file, despite it being a supported file-type.

Attached is one of the .vtxp files. I don't know whether or not it is compressed, so if someone could take a look, that would be very helpful. I can also link to the L7C file if anyone needs to look at it. I don't know if the quickbms script I used worked or not, so if linking it would be helpful, let me know and I'll upload it.