Thanks for that link, it's an interesting read. One particular story there is so great it bears posting: "what I found was a thread from a guy called Dejan on

Thanks for that link, it's an interesting read. One particular story there is so great it bears posting: "what I found was a thread from a guy called Dejan on the HDDGuru forums. Dejan had managed to corrupt the internal flash of his hard disk in some way and wanted to know if there's a way to either boot the controller from external flash, or a method to re-write the flash. For five days, he doesn't get a reponse, but the guy is inventive: the next thing he posts is the message that he has found the pinout of the JTAG-port. That's a major find: the JTAG-port can be used to control a controller like a puppet. You can stop it, restart it, modify memory, set breakpoints etc with it. Dejan then figures out how to dump the boot ROM of the controller, figures out there's a serial port on one of the hard disk headers and manages to restore his flash ROM. He then dumps a few more bits and pointers about the flash update process before finally disappearing into the mists of the Internet again. "