I just picked up a Lacie Rugged HD (it seems to be great so far) and I have just backed up my stuff onto the hard drive. I opened up an app called Disk Inventory X, which creates a visual showing you which items are taking up space on your hard drive, and noticed that only 63gigs are occupied, whereas i have around 100 gigs of junk on my laptop. I assume that this is because a lot of this is files that are needed to run the computer, sleep image, etc. I just want to check and make sure this sounds ok. Does this make sense?