Trying to modify Dawnguard to have Japanese voice files (but English t

[nils_olav]

Having played Skyrim for so long, I decided to switch the language of the NPC's (while keeping the game text files in English, since I don't know Japanese) to change things up. I did this with complete ease for the main skryim voice files, but it is proving troublesome to do this with Dawnguard since the voice files are within Dawnguard.bsa. Here is what I have done, step by step:

 

1. I purchased Dawnguard

2. Set language for Skyrim to Japanese, then to English (to get Dawnguard.bsa in both languages)

3. Used BSA extractor on both Dawnguard.bsa's

4. Replaced the Japanese voices folder over the English voice files

 

So I know I had to have done that part right. But whenever I compile these to a BSA and try to run Skyrim with this modified Dawnguard.bsa, it crashes on startup. I am an absolute noob when it comes to modding. Is there some way I can take the Japanese voice files and make them a mod instead of modifying the actual Dawnguard.bsa file?

Edited November 25, 2012 by nils_olav