Your LaCie drive should be formatted as FAT32 when you check it out from the InfoLab. See the table below for information about each type of format. Below the table are instructions for formatting the drive from a Mac or Windows computer.
Note that when you use the drive in Windows, you should use both of the USB cables. One USB cable transfers the files, the other provides power to the device.
Pro: Mac OS & Windows can read and save on the drive
Con: Files must be smaller than 4 GB in size. Read more »