When I needed to copy the contents of an EXT3 drive to a clean drive in a new DNS-320L I just used 'Ext2Fsd is an open source linux ext2/ext3 file system driver for Windows systems (NT/2K/XP/VISTA, X86/AMD64).' Check the Help section of this forum. Worked transparently in allowing Windows Explorer access to DNS-320 formated disks attached to Windows by USB caddy - treats Ext2 disks as any other. I then used the freeware Cobian Backup to systematically copy/backup the data to the new disk, before installing this older disk into the new DNS-320L, formatting and backing up my data using the Share centers own back up programme. Time consuming, but my data is safe, and its all sorted now.