Hacking wad manager 1.5 question

[DSTTSTINKYCARD]

helo again, hope you are not sick of me with all the questions
just a quick question,when you go into wad manager 1.5 and select ios version to use
then press A
it says select nand emulator device: then id you move d pad it says sd/sdhc card,usb 2.0 mass storage device

what is the nand emulator device for?
and when you are installing wads what does this part need to be set to?

 

[vegemikee]

disabled

 

[XFlak]

it allows u to install virtual console and wiiware games to a virtual nand device (SD or USB HD), they can only be accessed using triiforce (or if u create custom channels for it using CRAP)

generally speaking, 99% of the time u will choose to disable it

 

[DSTTSTINKYCARD]

thanks guys

bed time for me now
my head is spinning with all this