Only just got to attempt it just now, and i tried it for just dance 2015. The songs show up on the sd card archive section but when i transfer them over to wii memory they don't show up in the list and just eat up the storage. No idea why, Game and wii are both pal aswell :( Thanks for the help...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi