It's just as Nisaea has said -- MCC/Verbatim azo or JVC TY.
The DVD review guide already mentions what is archival -- anything in the 1st Class
designation. Remember that it lists by manufacturers, too -- not brands. If you buy TDK or Maxell brand now, you won't be getting their discs, as they stopped making their own media years ago. Read that guide carefully -- don't skim it. And unlike most of the half-assed reviews you find out there, both in print and online, ours is based on the testing of tens of thousands of discs for about a decade now.
That's at http://www.digitalFAQ.com/reviews/dvd-media.htm
And I further suggest non-shiny discs. Get branded, thermal white, or white/silver inkjet media.
I have serious concerns about long-term viability of shiny DVD-R. Research is pending.
Kudos to you for watching out for your data. You're a wise man, Charlie Brown.