I've got a 2008 iMac running the latest version of Leopard with several external hard drives connected. The hard drives are all older than two years, so are out of warranty, but none are older than six years. I use a 500GB WD to store Movies for iTunes and a 500GB Lacie to backup those movies. Since I have so many movies, those drives are nearly full and I know that I will upgrade to 1TB soon. However, the WD just suddenly started having problems, which I am guessing may have occured due to a power outage a few weeks back during a storm. Anyway, when I turn on the WD, it mounts on the desktop and shows that about 65GB is still free. However, when I click on the drive icon to view the contents, nothing shows. Disk Utility will not repair because it says it will not unmount, though the drive is showing up in the app and on the desktop. The WD feels like it is constantly being accessed, as it just continues to vibrate when powering on. No big deal since I have a backup on the Lacie. So, I power up the Lacie (which is an older drive) and it takes nearly 15 minutes to show up on the desktop, all while the blue light flashes repeatedly and I can hear a loud click two times every other minute. Uh, oh! When the drive finally mounts, it is acting very slow and I keep getting the spinning beach ball, even though it is connected via FW800. So, I boot into DiskWarrior to repair the drives. The Lacie takes ages, but finally finishes. The WD just does not succesfully rebuild. When I boot back into Mac, the Lacie mounts on the desktop and is running fine. However, it reports that nothing is on the disk and that the entire drive is free. The WD still mounts like before, but nothing has changed - the drive never stops spinning, no contents are showing in the drive (though it reports only 65GB is free), and Disk Utility or Finder can't do anything since it keeps saying the disk will not unmount. I am guessing there is a corrupted file on the WD, since I do not hear any clicking noises (hardware malfunction). I am not even sure what to think of the movies just disappearing from the Lacie after using Disk Warrior, though the drive seems to be working better than before now that it is empty. Like I stated before, this is almost 500GB of movies!!! What are my options, other than spending a fortune on data recovery services? Thank you in advance.