@SnackyZackyCool any progress with the conversion from .nkit.iso to vanilla .iso?
I've been having the same problem as Snacky here, I guess you could consider this as an answer for him, but I used the NKit you linked but it still isn't working, I get the same thing in the transcript, I tried turning off "Full Verify" but same thing. (Posted the Transcript)
DAT ENTRIES
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[3624 redump ] Redump.dat
[ 0 custom ] Custom.dat
[9785 gametdb] wiitdb.txt
#####[ 1 / 1 ]#################################################################
FILES
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Input: C:\Users\CENSORED\Downloads
Just Dance 3 (USA) (En,Fr,Es) (Rev 1).nkit.iso
Temp: C:\Users\CENSORED\OneDrive\Desktop\NKit!\Processed
SmLog: C:\Users\CENSORED\OneDrive\Desktop\NKit!\Processed\NKitSummary.txt
PROCESSING
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Just Dance 3 [SJDE] Wii [MiB:3640.3]
2 Passes: [NKit.ISO] >> [1:To ISO] >> [2:Calc Hashes]
To ISO: .1.2.3.4.5.6.7.8.9.10 ~ 0m 20s [MiB: 4482.3] NKit Invalid
|DETAIL
|...............................
|!! Update partition *_F9D11773 missing - Adding filler. It may be Recoverable
|...............................
Verification Failed Crc
8FD9664 - Failed Test Crc:4BB41C97
Deleting Output
Summary Log Written