Braden Farmer

Thank you for bringing this to my attention. I have gone ahead and pushed the source code for the modified version of MArchiveBatchTool found on the releases page, including complete...

I haven't been able to produce a fully working ROM using the instructions found at https://milkchoco.info/archives/9287. After applying the byte changes to the P-ROM, re-encrypting the C-ROMs, and loading the...

FinalBurn Neo refuses to boot the game for me due to the incorrect CRC32s for the P-ROM and C-ROMs.

Thanks, using [forcecrc32.py](https://www.nayuki.io/page/forcing-a-files-crc-to-any-value) works for getting the game running in FinalBurn Neo 👍 ``` python forcecrc32.py 264-p1.p1 8388604 b8cc969d python forcecrc32.py 264-c1.c1 8388604 4f148fee python forcecrc32.py 264-c2.c2 8388604 7cf5ff72 python...

The files in the `ValisCollection_Data/StreamingAssets/mednafen/mcs/` folder appear to just be savestates. If you add the `.gz` file extension to each of them, then decompress them with `gunzip` (7-Zip should work...

It looks like the `.edat` files might be XOR encrypted. Inside the Mednafen source code included with the Valis game launcher, the file `src/FileStream.cpp` contains these additions when comparing it...

Seems like this Steam forum post might contain the filenames for the BIOS and .cue files: https://steamcommunity.com/app/3097550/discussions/0/4696784467779444321/

Ok, I'm able to successfully decrypt the files within the `ValisCollection_Data/StreamingAssets/Game` directory using [Luigi Auriemma's XOR program](https://aluigi.altervista.org/mytoolz/xor.zip). Encryption key is `0xAA`. Example decrypted .cue file for Valis II (`Valis2_jp/NFWRAM3W8MJFKSSFQMDKNFPDM9VP6H5Y.edat`): [NFWRAM3W8MJFKSSFQMDKNFPDM9VP6H5Y.edat.txt](https://github.com/user-attachments/files/19272361/NFWRAM3W8MJFKSSFQMDKNFPDM9VP6H5Y.edat.txt)

Example commands for decrypting everything all at once using WSL, with `xor.exe` placed in the `Game` folder: ``` for i in $(find . -type d); do mkdir -p decrypted/$i; done...

I can confirm that the Super CD-ROM² BIOS v3.00 is within the data files for all games included in the Valis collection.