actually, using Wiiexplorer, and copied the data to usb, didnt take to long, it was the converting part, but using 8 core CPU does take less time, this time tho the japenese audio I converted at 44,000khz instead of the english which was at 22,000khz, the result is more quality but larger file size
cause you have to output raw-wave format to wav using winamp, in order to match it with english, you could use the english voice files and match the numbers to the jap to get your translation