So about a year ago a got an WD external hard drive and put a lot of music and photos on it and then deleted that material from my iBook. I then tucked the hard drive away and didn't use it again until a few weeks ago when I got a new MacBook pro and was so excited to use time machine that I quickly click click clicked through the set up without really reading the warnings carefully, and Time Machine set itself up but now I can't find any of the material that was existing on the hard drive before. Did I agree to erase all of my photos and music? The music I don't really care about, but the photos I can't replace--is there any way to get it back if it HAS been erased, if I send the hard drive somewhere for someone to retrieve them? Please help!