i have tested wario world usa burned on to a memorex dvd+r 2x with works great!
plays like the reall game.saves good .my wii is a 3.3u usa.my game cube memory card is a white 64MB i got off of ebay.for $4.85 real cheap:)
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