Yep, I had a batch of DVD-R in the early 2000s that didn't even last 4 years in normal storage. Kept in cases in a cupboard with no great humidity or temperature variation, the dye still degraded incredibly fast, and more than 50% of the data was unreadable when I checked them.
I can't remember the name of the brand off the top of my head (I just remember the discs were bright orange on top), but I'm pretty sure they used Ritek dye which was notoriously awful at the time.
After that, I switched to Taiyo Yuden discs from Japan, bought from reputable sources. Much more expensive, certainly, but much more reliable and durable too. Taiyo Yuden claim they'll last 100 years if they're not mishandled. I wouldn't touch any other brand now.