You need to know which operating system you currently have. Theres several different 6 speed OS's. And efilive normally only does a calibration read, it only does a full read if you install the patch file to do, and you're ready to sit through a 45 minute read with a good chance of a failed read when it's done(thank allison for this one). So unless you know which one you need, you could get alot of files that will do you no good,