The best solution I've found is a BusLink USB hard drive - comes in multiple sizes (mine is 80 Gig, cost about 340.00). I keep an uncompressed copy of all my graphics, 3D files, & Audio, & poser files (both original purchases, and my Poser4 folder structure). Plus I keep a series of archive folders on one drive, that I copy all my downloaded zips & sits into, once I've extracted the contents. When one gets up to 500Meg or so, I burn it onto 2 duplicate CD's, Verify the CD's by playing a test MOV file (that I put on each for the purpose) on my laptop (which has a very finicky CD), so I know it can be read, then I store each CD separately (one in my study, one in my garage-workshop. Takes about 1-1/2 hours every other month, on average. Overkill? - You Bet!, but I've squandered too many hours on this stuff to want to re-generate from scratch! :-) I've lost up to 7 months of coding (years ago when I wrote code for a living) in incredibly silly computer problems (the dumbest was the time I took my Comp in to a shop for an odd random reboot problem, & they REFORMATTED MY HARD DRIVE for me during the troubleshooting process, just to eliminate that as a source of the problem! Don't think the guy ever did realize why I was so upset - he did fix the problem for me - by replacing the memory chips) Rules to compute by; 1] Backup 2] backup 3] backup 4] repeat 1 thru 3 G