Nemáš tak docela pravdu - http://www.dposoft.net/hdd.html:
Samozřejmě, ne vždy tohle zafunguje, pokud je tam opravdu poškozený povrch, nepomůže ani svěcená voda.... Almost 60% of all hard drives damaged with bad sectors have an incorrectly magnetized disk surface. We have developed an algorithm which is used to repair damaged disk surfaces. This technology is hardware independent, it supports many types of hard drives and repairs damage that even low-level disk formatting cannot repair. As a result, previously unreadable information will be restored. ...