Interpreting HD Tune Results

[DeaconFrost]

I'm getting the following two results when I run HD Tune on both of my Seagate drives. The second drive, the 320 GB, is making noise all the time, sounding like an old drive with it's subtle rattle. Aside from that, the drives seem to be functioning okay, and the OS has reported no SMART errors. Should I be concerned about anything below? The number under Data for Seek Error Rate, also increases as I let the software run.