I found this site a while back but had forgotten about it. However, since I just bought new computers I was in the market for more blank DVDs but I couldn’t remember the difference between DVD-R and DVD+R.
How To Choose CD/DVD Archival Media is a very informative blog article. It gives the history of both CD and DVD technology, the differences between the various flavors of the media available, and which format you should choose for archival purposes. The author also has a recent update listing his choices for CD/DVD burners.
In a nutshell, the author recommends Taiyo Yuden media, which apparently is difficult to find outside of Japan; however, it’s the most reliable of all media on the market. Also, don’t spend the extra money on gold CD-Rs because they don’t give you much benefit for the price. Oh, if you’re buying blank DVDs, get DVD+R if your computer will handle it; they are better quality and generally perform better.