I was triying to download and install the witcher3 japanese language pack.

but i can't! install program popped up the message ,which said it can't found another disk

i found why the message popped up, because the japanese language pack is composed of 3 files

but run file name differs from other 2 files. so the run file can't apply other data files.(plz check attached image)

Then, i tried to change run file name as same as other file. but it said "data file is currupted"

i can't understand why this mistake happened.

plz fix this problem ASAP