What is this 9.1?
This is a packed 9.1, for archival purposes, containing the C of 3 languages in 12bit to save space, for a total of 12ch. Order is: L R C_EN LFE BL BR SL SR HSL HSR C_JP C_CNT. You will obviously need to unpack it to make separate audio streams for a release.
If you play it back as-is, it might sound OK, but it will be WRONG because 9.1sh is my own CUSTOM format.
It's for my "Stand By Me Doraemon" release https://nyaa.si/view/1115205 , see that for more info. If you want to make your own 9.1, go ahead, but you SHOULD credit me as jhl or junh1024. If you just replace C, it will be "OK", but to be correct to match this audio, 75% of what's in LR should be removed from C.