It's clear to me how clibration is done for DVD. One just sticks Video Essentials in and away we go. But how can this be done with set top box? Clearly, it's a different input, different white balance etc. so needs to be set up separately. How is this done during ISF calibration? I thought one way would be to take the hard drive out of SKY+, connect it to PC, recode DVE into sky+ friendly format and put it back in. Has anyone ever done anything like this and if so can you describe your workflow?