Ah, it was you that made the guide! I really appreciate it, but yes, I did follow that guide.
I've ripped a total of 3 games (using GW on my O3DS), Cubic Ninja is 45, Legend of Zelda OOT is CA, and Legend of Zelda MM is also CA
I'm not home right now to give the Mystery Bytes, Sizes, or Card Types, but as stated I don't think that matters at all.
I really appreciate the help, but it's got to be the Rom or something, I know that I'm using a CA private header for MH4. I may just have to go out and purchase an 8GB SD Card to rip my own MH4.
It seems no one has really came across this problem after using the correct Manufacturing header.
CA? Hopefully you mean C2. Try reformatting your SD card and then making your own template using Sky Army Knife just for MH4 so you don't waste time.
If it helps, this is my template info for MH4U created using SAK.
** : CTR-P-BFGE
SHA1: F69DA6A017CCEAE3BA2BA5E1CCA6FA89F3D6A284
00 00 00 00 C2 F0 00 90 C2 22 13 00 E6 D4 19 2B
43 54 52 49 4D 41 47 45 00 00 00 00 00 00 00 00
A3 4D FA 7E B3 DD D2 D8 10 88 BE 63 01 47 6F FA
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-------------------PRIVATE---------------------
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
43 54 52 2D 50 2D 42 46 47 45 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 C7 23
EDIT: Still, you say it could be the rom, I don't really know about that, but it wouldn't hurt to try. I have a rom of the game, not my own dump, and I also trimmed it down to 2.56GB, and it still works.