So far the cheapest cards from Kingston with Lifetime warranties run about $75 for 32GB. I am actually planning on getting a couple of these to retire one hdd that I have had in service for backups the past 3 years or so. Temp Ranges are generally -25C to 85C and are waterproof. So with the offsite backups I am using through DataStorageUnit.com and what is in my machine should be more than sufficient. I have one of the 25N1 multi slot readers so I can pretty much read any media I want. SD cards seem to be just about as durable, at least a close 2nd, but about the same price. I wouldn't look at any USB flash drives because I literally have had 2-3 in the past few months fall apart in my hands. With my data on it. Another lets not make me a happy camper issue. As far as compact flash goes I really haven't seen any 64 GB cards that at present would be in the price of us mortal humans. Right now that 32 GB would fit what I think is critical to backups and in the next 6 months, most likely after the holidays prices should drop on 64GB sufficiently. The idea is compactness, durability not necessarily size of the drive at present. Does anyone else use anything else that I may not be thinking of at the moment? -- -- Remember it's not that we have something to hide, we just have nothing we want to show. ---Keep tunnelling.