[benzinjiq]

Hello, guys! We've tried and succeeded to translate a few games for PS3 to our native language, but one seems to get us pwned.
I'm talking about God Of War 3 EUR version (multilanguage). We've managed to extract the contents of RES.PSARC, and translate the in-game texts, which are in WAD files (specifficly in R_LANG_EN.WAD, where russian language is, since our language uses cyrllic alphabet). Our output file is the exact same size as the original file, since we filled the remaining bytes with null data.
After this we successfully created a new PSARC archive, using PSARC from the SDK.
Now the problem - in one case we get an archive file with size of difference of 10 kilobytes and the game blackscreens after a couple of logos (just before the first animation).
At a second try we've managed to create the same as original size archive, using some HEX editing, but the result is the same.
Is there any hash checks in the EBOOT.BIN, or anywhere else, that prevent the game from correctly booting, or something else? Can somebody offer a different solution? I can give you a more detailed info on how we did everything if necessary.
Thanks in advance!