External hard disc, CD or DVD?

Question

If I want store data for a long time (ten years upwards) which medium would be best? External hard disc, CD or DVD?

Answer 1

DVD and make sure you store it safely. Keep the DVD in a plastic case, away from light, heat and magnetic sources, do not write on the DVD with a texta or put labels onto it. (put the details on the case) Record your data at the slowest speed possible. Don't use cheap DVDs or ones purchased from a market (these tend to be seconds). I would also suggest buying gold disk's, they cost more but have a much better long term data retention capability (they don't corrode or have mould grow on them like aluminium or silver disks) In theory they have a 100 year plus lifespan if recorded and stored properly.

Answer 2

Hi
You can store date either on CD or DVD without any restriction of time. Put the CD or DVD in Plastic cover and place it at a safe place in darkness and use it as anytime after no fixed period. Both the mediums are reliable enough. I personally experienced this. I recorded a CD ten years before and till today I use it.

Answer 3

CDs and DVDs are less likely to be damaged by shocks, dust, water, etc. No mechanical parts.

However, the CDs that are burned from your computer, rather then professionally pressed, have a shelf life of about 2-3 years. It is recommended that you reburn (copy the original) every couple of years to keep them fresh.

Answer 4

CD or DVD, but make copies every 2-3 years also

Answer 5

DVD or CD works best - If you look after them and do not scratch them, they can keep a long time

Answer 6

None.

It's not possible to know where technology will be in 10 years or more.

CDs and DVDs deteriorate in as little as 18 months (brand dependent - too late by the time you know for sure)

Hard drives stick if not used for a long time.

just my thoughts - teef_au