My wife's windows computer crashed and we parted it all out. We kept the hard drive from it and had my brother move everything onto a small 120gb external because he had all the equipment and know-how. He did it on his windows computer, and now everything I have on the external is read only. I can't reformat the drive because I need the pictures and music and everything on the drive, but is there any other way to get write access to the drive without taking it back to my brother?