Try changing the sata port and the sata cable.

This is the easiest and cheapest step of diagnostics for your problem.

Pronounce is a firefox add-on for the same purpose. If you're like me, effectively locked into firefox thanks to the extensive and currently unmatched add-on set, despite all the memory leaks and sometimes slow performance, this would do the job for you.

How I wish Opera had one third of the extension park of Firefox...