I have two drives connected to the plug and they're both formatted as Mac OS Journaled.  I use the pogoplug application on my mac to mount the drives.  If I drag a folder of stuff to the drive it will start to copy but then fail after some random amount of time.

I can't even delete files from one of the drives... I get an error that says "The operation can't be completed because an unexpected error occurred (error code -8072)."

My plans to use the pogoplug as a "storage in the cloud" solution haven't worked once in the month I've had this thing.

What am I doing wrong? Is it the formatting of the drive? Drive type (do SATA work better than IDE? Is flash better than both?)

What I really want to do is have each drive contain a .sparseimage file so that I can use my preferred backup utility, Super Duper!, to perform my backups.  Most of the time I can't even *mount* the images that I have stored on the pogoplug drives.