Bests & Worsts Reviews from Amazon

Here's a crucial detail I couldn't find in other reviews before I went ahead and bought one: Yes, my Mac (Mac Mini, vintage 2009, running Leopard OS 10.5.8) recognizes this drive as bootable, and I confirmed that I could actually boot from this drive, after cloning my original harddrive to this Iomega drive. I did not have to prepare the Iomega drive at all. I just used the free Carbon Copy Cloner software to copy my entire Mac's hard drive to the Iomega drive. No partitioning or formatting necessary. However, there's a trick to booting from the Iomega drive: You have to keep holding down the Option key while your Mac starts up longer than you think you ought to. Keep holding it down even after you see your Mac's boot menu appear, which at first will only offer you your built-in original hard drive as the only option to boot from. Keep holding it down a few more seconds, until your Iomega drive pops up next to your original hard drive. Why does this matter? In my case I wanted a total copy of my Mac before I attempted upgrading to Snow Leopard. To do that, in case Snow Leopard (or whatever experiment you're about to do on your Mac) hoses your Mac, you need to be able to boot up from your backup copy on your external hard drive, and then you can clone everything right back to your hard drive to restore everything the way it was.