DVD-RW or DVD+RW or DVD-RAM (Score 1)

Hello ALL, currently the IDEAL way to store data would be a DVD-RAM Carousel with say 100-500 discs. At 9.7 GB a disk, that's roughly 10 - 50 terabytes. Currently though, the only EBAYed DVD carousel I can find is the PowerFile c200. It's a DVD-R only carousel so it's of limited use (though it holds 100 discs.) I have been thinking, because that PowerFile uses 2 DVD-R drives, would it work if you remove the Dvd-r drives and swap them with DVD+RW and or DVD-RAM? DVD-RAM discs are ideal though because they can be writen to up to about 100,000 times (hundred thousand for European readers.) i will never use a harddrive backup system simply because harddrives are mechanical and have a limited life (if it's got a 1year warranty, probably a VERY limited life.) The only other plausable permanent storage media is solid state disks, which cost SOOO MUCH, we'll probably never see them large enough for general use in our lifetimes.