I have this new large drive that is sata controlled. I put all my data on the drive (transferred from origional drive 1/2 its size) and got everything working, then used the old drive in another machine (after formatting it). Now I used my computer for a while with everything ok. I tried to speed things up and found a setting for the sata drive to used the Advanced Control (protocol?) on it. When I booted, it apparently did something to my drive. now, instead of 1TB of data, it shows the drive at 32mb size, and I am not able to access it. What is a good recovery for my data, or at least some of it?