I have also confirmed this method to be working but have a thought on how to update the emulated nand.
I download the songs i want onto my wii nand and then do the backup, delete the DLC off of the wii nand.
Backup nand now has songs, wii nand does not. Download some more songs onto wii nand, surely then backing that up would overwrite the emulated save meaning only the new songs would show right?
Oh, and downloading to the emulated nand by accessing the rock shop using uLoader + USB options does not work at all.
To add more songs as they come simplu download them to your real NAND, dump it then unpack the dump with ShowMiiWads and paste it over your old NAND dump choosing to overwrite all when prompted. I can tell you this work as this is the methode I use.
QUOTE(mayhem366 @ Mar 16 2010, 02:14 PM) Hmm, is there a way to stop RB2 'backing up' the stuff to the hard drive if it is loaded through the USB? Mine took a couple of mins in the normal places to load, checking SD card, loading etc. But now it has got to backup content and is taking bleeding ages to do whatever it is doing.