i just tried testing to see if i can align skit's text with Japanese voice correctly. on a skit in chapter 2 barona. i made rootR.cpk with only CHT_DCXXX.chd in chat/chd folder from US version . no change in skit. then i tried the same with CHT_MSXXX.chd files. this time the text was right but the voice turned back to english.
i think the problem is on some texts where japanese version only needed one box for the whole text but english needs two. so it won't align well. either way I gave up. maybe someone will find my test results useful.
i checked the chd files, i can make an unpacker/repacker. The file has to be uncompressed for this, so only edit those where are problems with the skits, as these chd files can increase the cpk size a lot. Or if there are too many problems we can just use the US font.
For those who have problems with cpkcr or gui, please post the error (or the whole message log)! Missing arguments means something is wrong with the command line parameters, Could not open means the file is missing or locked by another program (for example, a hex editor). Also do not forget to put the gui (the jar/bat file) next to the program (the exe, on windows), the gui is only for starting it without typing in the commands.
I will write a guide if there are a lot of problems (or maybe Nogitsune wants to update it? ).
unfortunately i couldn't get the gui run myself. it just gives an ambiguous error (cpkcr.exe has encountered a problem and needs to close).
i think the problem is my windows though. the program itself says look at the log. which is non existent.