Bad sector & badblocks

I have a 20 gig hard drive that I got from a… uh recently dismantled ps3, I’ve reset it but it has some bad sectors. I plan on using it to host a BackTrack OS and am pondering what I should really do. It says it has 1 bad sector, and that it’s fine it will run;
GSmartControl - Overall Health Assessment: Passed
Hard Disk Smart Data (DataUT) - Completed OK & Overall Health: Passed
and among other software I’ve scanned with…

I don’t think it will do much, but just want to know your opinion.