SL or DL DVD±R? These are pretty much the highest quality recordable DVD media you can find, and I would stock up on them if you can still get SL Singapore made discs.
TDK's cyanine CD-R's were great, would consider them one of the best CD-R's ever made, many as good or possibly better than Taiyo Yuden's best production. I still have a lot of them I stocked up before they disappeared ~15 years ago.
FTI CD-R's made with TDK ATIP (97m15s05f) are very good, but it's kind of uninteresting to pay premium prices for P-Cyanine discs, especially when Taiwanese P-Cyanine CD-R's can still be pretty good.
The degradation problems with TDK media, which as I stated are well-known and documented, are limited to the 16x DVD media, I think. This is the same spec that FTI sells under their Falcon brand.
To everyone commenting: Continue their usage at your discretion. But if there's so many people experiencing problems, for over a decade and with separate manufacturers, why risk it and waste your time when you can buy discs proven not to degrade for much cheaper? It is not all about pretty quality scans, not even close.