6 or so gigs missing

[Sambo110]

I was using that app that iDefrag has to back up your bootable disc, so you can boot off a new one or whatever, and it kind of hung when the progress bar finished, twice. Both times I cancelled it. But now I'm missing 6 or so gigs that I can't seem to find. Is there any way I can actually find what is taking up this space? I'd quite like it back, considering my hard drive doesn't have all that much space left.

 

[VPrime]

THis may help find where your space has gone.
http://www.derlien.com/

 

[Sambo110]

I used that and I managed to find one of the disc images, which was a little over a gig, but I couldn't find where the other 5 or so have gone. I'm not sure where they went, it just seems like they disappeared when I was copying the disk :\

 

[simsaladimbamba]

You could also take a look at OmniDiskSweeper, JDisk Report or GrandPerspective to see where your HDD space went to.