Don't forget that if the unemployment office determines you were terminated for legitimate reasons, they will likely deny your claim as well.
Using company equipment to record the workplace is probably something that would be called legitimate.
Now, you can still pursue the harrassment claim, separate of the termination case, something you're more likely to get headway on. You can contact the EOC and file a claim with them, since your attempt to resolve the claim through your company failed. If you still have a copy of that disk, they may or may not look at it depending on the legal issues. However, if they find you were harrassed, they will fine the company and you will have a court case that a lawyer will take.
I'd go that route, because often times filing an EOC complaint can result in settlement without actually having to file suit.