Tools-HDLLT
When formatting the card, we recommend you to use the tool called "Hard Disk Low Lelel Tool" found at: www.labists.com/pages/tools-HDLLT.
On Linux or Mac OS you can use the standard formatting tools already built-in. On a MAC, this means using the Disk Utility application.
Warnning: when formatting, always ensure the corret drive is selected so that you do not accidently format a different drive.