Pogoplug is designed to be compatible with consumer USB and USM/SATA drives and SD cards.
The supported formats are : HFS+, NTFS, FAT32, EXT2 and EXT3. However, there are a few exceptions:
1) Password protected drives
2) Drives with embedded power management
3) Encrypted drives
While encrypted drives are simply not supported, it is usually possible to use your password protected drives or drives with power management once these features are disabled.
Please contact the manufacturer of your drive to remove the password or disable power management before attaching your drive to your Pogoplug.