I've tried to crack some SF protected cdrom from a company called Emme productions but i failed I guess many new protection products like SF and CDCOPS3 use the DPM (Data Position Measurement) method which is physically impossible to crack but one may attack the software driver/ lock checking code. Anyone has played with this? I'm also interested in how these DPM kind of locks work (Alcohol 120% can measure and make images of theses protected cdroms).