I'd suggest an external hard drive as well.  As a matter of fact, I woud suggest copying it to 2 separate external drives in case one fails!  I lost my entire runtimes to a defective external drive.  My friend who was trying to help me recover them was in absolute fits over the amount of loss and she couldn't understand why I wasn't. (it wasn't life or death and not worth getting all worked up over).  After spending weeks reinstalling everything from scratch, the blasted drive failed again about a month later.  This time I managed to recover the data though. Now the nasty drive sits unused grinning at me, and daring me to try it again,  LMAO

Now I use CD's, my second hard drive on my desktop, and my website.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi