Greetings. I own a Plumax PM-525C2-PPS Silver Combo USB 2.0 & Firewire 1394 External Enclosure with a 250G Seagate hard drive in it. For the second time, I have been forced to recover all the data using GetDataBack from the drive because it has become "inaccessible". WinXP Pro Explorer says "the parameter is incorrect". chkdsk says "Unable to determine volume version and state". Partition Magic v8 says "Bad file record signature". I always dismount the drive by clicking the icon in the systray and waiting for the "You may unplug..." notice. The enclosure supports larger drives. I had the drive partitioned with one "logical" partition with NTFS formatting. The first time it crapped out, I had multiple partitions with a primary and NTFS formatting. Am I doing something that's corrupting the drive? All reasonable suggestions or observations are appreciated. TIA. Regards.