emunand: the NCSD header (first 0x200 bytes of nand) is moved to about 1 GB (3BA00000 old3ds physical offset) in the sdmc card.
the rest of the nand (offset 0x200 and beyond) starts at sdmc physical offset 0x200 and continues uninterrupted to the end of the nand
With rednand, the entire nand is contiguous, essentially idenical to the sysnand image. It is placed anywhere in the unallocated sdmc region.
Ahh there you go then, was hoping someone would clear that up because i couldn't really remember. haha