Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The question is as simple as that really. Are bluray disks the cheapest storage medium per gb?

I am recording video which is using about 32gb per day. So a month of that would be almost 1Tb. A year around 12tb.

I want to store at last a years worth with the possibility of more if needed. To me it seems that cheap bluray disks world be the cheapest solution.

But I wanted to get this confirmed.

share|improve this question
No, LTO tapes are cheaper if you have very large volume (because the drive is expensive). Another hidden cost of Blu-ray is the very slow burning speed. However, in your case, blu-ray is the most economical solution as your volume is not big enough. – Nov 17 '12 at 13:52
Looks like LTO tapes + drive only become cheaper than Blu-Ray disks + drives if I want to store 7+ years of 12Tb a year. For 1 year of 12Tb using LTO will cost me around 770GBP, but the Blu-ray solution will cost 250GBP. 2 years of LTO will cost 870GBP and 2 years of Blu-ray will cost 440GBP. – oshirowanen Nov 17 '12 at 16:34
Yeah, one major advantage of LTO is that you can reliably re-use the tapes, which is good for backups that only needs to be available for a few months. But I guess that is not relevant to your case. – Nov 17 '12 at 17:39
up vote 3 down vote accepted

Something to keep in mind:

A quick check of media prices shows BD-R disks for around $1 each--4 cents per GB.

Hard drives are easier to get a good measure of the price as pricewatch tracks them--2tb for $90. That's 4.5 cents per GB.

The drives are reusable, the disks are not. In either case you need some sort of redundancy anyway.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .