I strongly disagree with what you're saying here. In regards to archival media you should not use CD-Rs, CD-RWs, DVD+/-Rs, DVD+/-RW, or DVD-RAM discs. Flat out don't. Note that my comments are targeted at having stuff that will be around in 20+ years. If you're burning discs to just move data around or pass a copy of some files off to someone, anything will work.
It use to be received wisdom that you buy Taiyo Yuden discs and life was good. They are good quality discs, but they are not archival quality. All CD/DVD recordable discs are made using organic dyes (AZO or not) and are susceptible to breakdown over time. Light exposure will hasten this process. Not to mention all these discs all use aluminum reflective layers that are subject to oxidation which will make the discs unreadable.
The recordable layer BD-Rs is made of inorganic alloys and won't break down over time. BD-Rs have been tested to handle extreme temperatures and be perfectly readable. Except LTH discs... They use organic layers and are susceptible to breakdown just like their CD/DVD cousins.
I agree with your recommendation for Panasonic BD-Rs. They're the best in many tests, but unfortunately hard to find. I just got a spindle from Japan last week and they were about $75 for 30, so a bit pricey. Verbatim are just "ok." Sony would be a good second choice after Panasonic. Avoid LTH all together. Not only does it have compatibility issues, but it won't last nearly as long as a regular BD-R (HTL).