AJ;
The success of your burn, once burned and verified, is entirely up to the disc. We recommend either Taiyo Yuden or Verbatim DataLifePlus made in Singapore because their dye is the best and the data stored there upon is also the safest. No one can guarantee that your data will last for 20 years because, among other factors, there is no guarantee that the optical drives in use now will even be around in 20 years to read the disc.
As far as poor vs. good burners, with the cost of all of them being dirt cheap, invest the extra few $ and buy the best you can. They will last the longest and return your investment back to you in the form of less garbage created and less headaches all around.
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