Buffalo HD-WLSU2R1 DriveStation Duo Manuel D'utilisation page 8

Using the RAID Utility
Select the drive structure that you'd like to use.
On a PC, the disk can be formatted with FAT32 or NTFS. Select the
format that you prefer. FAT32 is compatible with most Windows PCs
and Macs. NTFS offers the best performance with Windows, but isn't
compatible with Mac. NTFS is recommended for use with backup, video
editing and other programs that may need filesizes larger than 4GB.
If you are using Windows XP, or Windows Server 2003 without SP1 or
later, use compatability mode. Compatability mode will divide drives into
2 TB partitions that can be read by Windows XP or Windows Server 2003.
Click [Yes], and [Yes] again. Understand that this will erase any data on
the drive!
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