I'm currently having issues with my flash drive (it's a 16gb sandisk cruzer) using wbfs mac manager..

At first there were no problems, but having to delete games from the drive to switch them it seems it's caused some space issues.
I only have one game on there right now which is 4.12gb and it's saying that I'm using 12gb on the drive.

I've previously had up to 5 games on there (Mario Galaxy 2, Metroid Prime, New Super Mario Bros., Super Paper Mario, and Kirby's epic yarn) so I know somethings gone wrong when I only have Metroid on there right now.

Has anyone had the same problem? Was there a way to fix it? Would reformatting it work?