I just purchased a WD SATA II drive and installed it in a SATA-to-USB 2.0 enclosure I previously used for a SATA I drive. I've been editing wedding/event and industrial videos part-time on my system for the past 3 1/2 years. The data and power connections are still the same. I'm running Windows 2000. The board is pre-SATA hence the use of the SATA-to-USB 2.0 enclosure. I would have purchased a SATA I drive, but they're no longer available at the place where I purchased the drives. Disk Management in Win 2000 doesn't recognize the new SATA II drive located in that enclosure box. I'm not sure if the box is either incompatible or I need WD software to format the drive. Is there something I need to do to make the SATA II drive appear as a SATA I drive? I've been to Western Digital's site looking for any information on that. My MSI motherboard BIOS (circa 2003) might not work for drives above 320 GB. Any suggestions?