Things You'll Need
Instructions
Insert the SD card into the slot on the Nintendo Wii.
Select the ̶0;Wii̶1; button in the bottom left corner of the main menu.
Select ̶0;Wii Settings̶1; from the new menu that appears. The icon for this is a wrench.
Select ̶0;Data Management̶1; from the settings menu.
Choose the ̶0;Wii̶1; tab at the top of the screen. All of the saved files on your Nintendo Wii will appear.
Select the Rock Band save file icon from the menu.
Choose ̶0;Copy̶1; from the list of options that appear.
Select ̶0;Yes̶1; from the prompt and choose ̶0;Copy to SD Card.̶1; This will copy your Rock Band files to the SD card.