Jamesw20 - you're right to be paranoid about your hard drive failing, it eventually will, but the best strategy for dealing with that is to have a backup of your hard drive, or two, but CD's or DVD's aren't necessarily the best option.
With drives costing $100 per terabyte right now everyone should have a second drive that mirrors the regular storage drive. If you're really concerned, have a third drive and rotate the backups, keeping one off site at all times. Sounds obsessive but if you back up to another drive once a week and rotate the two backups once a month your chances of losing more than a week's worth of downloads are very low and the $200 you spent on the drives will seem like nothing if you ever really need them. Taking that a step further, you probably ought to replace the drives every two or three years.
It's a fact of digital life that we'll have to keep duplicating all our data over and over as technology advances. We think of CD's and spinning magnetic disks as standards but they'll be obsolete soon enough, just like the analog tape and Syquest and Jaz disks we used to rely on. Fortunately the cost of storage is getting to the point that it's not much of a consideration.
With drives costing $100 per terabyte right now everyone should have a second drive that mirrors the regular storage drive. If you're really concerned, have a third drive and rotate the backups, keeping one off site at all times. Sounds obsessive but if you back up to another drive once a week and rotate the two backups once a month your chances of losing more than a week's worth of downloads are very low and the $200 you spent on the drives will seem like nothing if you ever really need them. Taking that a step further, you probably ought to replace the drives every two or three years.
It's a fact of digital life that we'll have to keep duplicating all our data over and over as technology advances. We think of CD's and spinning magnetic disks as standards but they'll be obsolete soon enough, just like the analog tape and Syquest and Jaz disks we used to rely on. Fortunately the cost of storage is getting to the point that it's not much of a consideration.