i know this is most likely a ridiculously ignorant question, but are larger drives less stable than smaller ones? i am not talking about a brand difference, i am talking storage size; for example is a 500GB Seagate Barracuda less likely to have a failure than a 1TB Seagate Barracuda? etc.. i need new drives for my mac pro; i was about to click on "order" for 2 x 500GB, but i realized that a single 1TB drive would be basically the same storage, but to me a 1TB seems just more prone to failure, like an over pressurized car tire. (i am aware of the logic that 1TB over 2 drives means twice as likely to fail, but other than that.) i assume i am completely incorrect but i just need to hear it from someone else.