Extracting .pac files from Hakuouki Kyoto Winds (PC)

[italianlink]

Hi there. I'm having trouble extracting data from this game. It looks like the it is stored using small .cpk files and large .pac files. For example, in the data folder there are a pair of files with the titles "SOUND.cpk" and "SOUND00000.pac". The .pac file is 1.11gb, while the .cpk file is only 1.29mb.

I assume that since the .pac files are bigger, they are the ones I need to extract from. I haven't had any luck so far. Does anyone have a bms for this? Or should I be trying a different approach?

Here's a sample. It's 21.5mb. https://drive.google.com/open?id=1sQIj4dvMCQlHUSeWqHwt9CAu66VT84Ix

Just in case, this is the .cpk with a similar name. It's much smaller than the .pac: https://drive.google.com/open?id=1dSirwfx6JfBegT4NcV7x-kDxaQWWISd-

Thanks for reading!

[aluigi]

The neptunia script seems to work perfectly on the pak archive:
http://aluigi.org/bms/neptunia_rebirth1.bms

the cpk file is useless, you can ignore it

[italianlink]

The neptunia script seems to work perfectly on the pak archive:
http://aluigi.org/bms/neptunia_rebirth1.bms

the cpk file is useless, you can ignore it

This absolutely works! I'm so glad! I've been trying to figure this out for months! Thanks so much Aluigi