Thanks for reading. I'm having to draft and post this from my iPhone, so please excuse the brevity and any mistakes. My Air's hard drive is failing. I can not boot from the hard drive at all. I can boot from a snow leopard DVD via the external SuperDrive apple sells. From there, I can see the hard drive, and I have the option to make a disc image. However, to copy or image the hard drive I have to have a destination drive. There is only one USB port, and it is running the snow leopard boot disc. I bought a Kensington powered 4 port USB splitter, but snow leopard won't boot from that intermediary. I appreciate any advice. There are things on my hard drive desktop that were not backed up that I need, hence my desire to image or copy the disc. I can even see the names of the documents via Disc Utility when I boot from Snow Leopard. But from there I am stuck. Thank you very much for any assistance.