That would be around 400 CDrs...u can get them for around 100 dollars....im sure that is not expensive..compared to the zillion hrs u put in to back the stuff up...if there is a cheap data recovery service...maybe u should get one done....make it a habit to burn a cd everytime u download 700MB of stuff....
Ok, so cd's are cheap but look at the man hour i have to put in. 4.5 minutes for a cd at 24X for 400 cd. hmm