Heads-up! I just got a 1 tera-byte Hitachi external drive and it was very slow-- it took 15 min. to copy 557megs!! It would also hang up when copying. Before returning it I decided to install a new XP with very little on it (drivers, FF, Avira AV, CCleaner, Foxit reader) and it copied the same 557megs in just 2min. and 35 seconds!! So now I know that it is not the external drive that is defective but rather I have overloaded my OS's too much. I will now keep a clean partition to transfer my data from my data partition to the external drive. I like to do these tasks manually.