I am using wbfs on Linux to copy *.iso files to an external harddrive. if I do: wbfs -p /dev/sdb1 init I can see the drive lights go for a second.. wbfs -p /dev/sdb1 add some-iso-image.iso adding XXXXXX Some Game: Title... error seeking in disc file: Invalid argument nothing works.. I then tried formatting the external harddrive with my Wii instead and also added a game from disc, this works.. I can then put the drive back on my computer and do: wbfs -p /dev/sdb1 ls and see that the game is there.. wbfs -p /dev/sdb1 df and see that there is some usage and such.. wbfs -p /dev/sdb1 add game-disc-image.iso adding XXXXXX Some Game: Title... error seeking in disc file: Invalid argument same error again.. I also tried using the drive device name instead of the partition device name: wbfs -d /dev/sdb doesn't work either my harddrive works fine only when copying games from a game disc while plugged into the Wii itself.. using a computer it doesn't work.. I also tried on a friend's Windows computer and didn't find the drive at all.. the drive is a Western Digital 320GB Passport.. Model: WD3200MLB-00 it is USB interface and SATA internally I've used an 8GB USB thumb drive and it works fine on Wii itself and on Linux.. partitions and such are setup the exact same..