> i have a bunch of disks to check here at work.
> i did some googling, but without luck.
> Hopefully something that is bootable, or live-cd.
You could always run something like fsck or chkdsk from a bootable CD / floppy / USB key / whatever depending on the filesystem on the drive you're looking at - or are you literally looking for something that goes through bit-by-bit at the drive level?
If you do a bit-by-bit (or even block-by-block) test on a remotely modern HDD, expect to be waiting for it to finish for a *VERY* long time. Consider the number of read / write / verify cycles you're going to have to go through - it ain't gonna be quick.
Besides, if it's for work, they should be able to figure out that putting a drive in production where there's any question of it possibly being iffy is not the best idea, and that it should just be replaced outright. I know everyone's trying to save their pennies right now, but if the potential cost of a failure outweighs the cost of a replacement, they should be pretty open to the idea.