CD or zips, make sure you have backups of each. In college i lost 2 major projects, one was on a zip, and backed up on another zip, 3 words, Click of Death. So that was that. Another project was on a CD, it was my fault I admit, lets just say i got some tape on the label, and I went to pull it off, and the foil came right along with it. I'm older, and i learned the hard way, now i buy high quality CD-RWs for class projects, which i keep multiple copies, from my hard drives to zips as well. Our school is phasing out the use of zips, and orbs were short lived.