[quote=shodanx;2002108]the cheapest mass storage I could find is 0.042$ per GB
hard drives are about 0.28$ per GB
the best I could find was in the 8$ or 9$ range so about 0.34$ per GB for something a lot less convenient or compact than hard drives
am I right to think that, at this moment, the cheapest per GB backup solution is DVD*R ?[/quote]Based on your observation, yes the cheapest is DVD (that’s DVD SL).
[quote=shodanx;2004041]so pretty much, BD-R are out for my application, too expensive and possible media defects
so DVD*R it is
[/quote]Not too fast.
For 10TB data you have, you will need:
Harddrive: 10 of 1TB drives or 20 of 500GB drives.
DVD±R: around 2,500 discs (given file size difference)
BD-R: around 400 discs (given file size difference)
If you go with DVD+R DL, then it will most likely the same or more expensive than BD-R.
DVD±R might be cheaper but if you’re OK with the storing 2,500 discs (around 500 spindles of 50pack) and trying to find particular files you need, then go for it.
I would consider harddrives but I definitely will look into blu-ray disc as storage, in your case.