Hard drive errors?

[monkeymac]

I was verifying my hard drive with disk utility when I got this message:

Verifying volume “Lacie”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Illegal name
Illegal name
Incorrect size for file DSC_0043.JPG
DSC_0043.JPG
instead of %@)",2)
1605632
576460752305028306
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking Extended Attributes file.
volume bitmap.",0)
Checking volume information.
The volume Lacie needs to be repaired.

Error: The underlying task reported failure on exit


1 HFS volume checked
Volume needs repair

I am unable to click "Repair Disk." What can I do to repair this? I am very inexperienced with this so I appreciate any help I can get. Thanks!

 

[mad jew]

You can't repair the disk you start up from so you can either use Disk Utility on the OSX system disks by putting them in the optical drive and pressing C as you boot up, selecting Disk Utility from one of the menus and repairing the disk.

Or even better, you can run fsck.