| Use magnetic tape drives... they're slow but proven to work as backups. Large companies still use them and with good reason - they're no different from VHS cassette tapes, i'm sure everyone has them lying around still and they still work for you guys after how many years?
Of course, the issue is storing them, they can be quite large depending on how much data you want to store on them and i think they should be in dry and cool places (but everyone here has a (D)SLR so im sure there's SOME place that fits that criteria available).
And they're slow because data is read in sequence - so you start reading from the beginning of the tape and want to get to data in the middle or at the end and the reader has to go through the whole tape (like FF'ing on VHS).
Of course my suggestion may be a little farfetched - i think magnetic tape drives are quite expensive since they're not really meant for normal consumers :P |