FAQ:
Q: Can I extract all the games from a WBFS partition to .wbfs files?
A: Yes, use this command:
wbfs_file.exe W: extract_wbfs_all D:\wbfs
Where W: is your WBFS partition and D:\wbfs is the FAT partition on USB
(or any kind of filesystem on a local hard-disk)
Q: How to copy all .wbfs files...