the .wbfs files need to be in correct folders, with correct filenames.
You can't just place all files in the same folder with random names.

/wbfs/sub-Folder/wbfs file(s) here

/wbfs/Game's Title [GameID6]/GameID6.wbfs

example:
/wbfs/New super Mario Wii [SMNP01]/SMNP01.wbfs
/wbfs/Mario Party 8 [RM8E01]/RM8E01.wbfs


Now you will thing "how the hell would I get the gameID?"
you don't. there are tools to place and rename the files and folders correctly for you.

Download WiiBackupManager (NEVER USE WBFS manager anymore! it's a bad program)

1 Go to "settings>FAT32" tab
select "layout format : "Title [ID]"
select "automatically rename folder name convention at mount"
select "use subfolders"

2 go to "settings>Title" tab
Download Wiitdb file
enable "use wiitdb names for folders"

Exit the settings.

Now, mount your drive in the "drive" tab and ALL your games in /wbfs/ folder will be moved and renamed correctly in 1 second.
try the drive again in the loader.


to add games, use that program again. Open the ISO and select "transfer" to copy/rename/split the file into wbfs format.