Yes, it is what I mean.
However, the time to deterioration is very variable and depends on many factors, some listed above. Other potential sources are sticker (glue), prints, notes on the discs.
Of course they can last for more (or less) than 2 years in most cases, you will only know when it is too late…I don't want to seed panic. Anyway, if you look around, you will find that the perfect backup / storage does not exists and numerical creations are more on risk as classical support arts (Books, pictures, vinyl, celluloid) if not backed up regulary.
Best is you search in specialized forums about recordable media.
Pressed CD and DVD are lasting very long, their manufacturing process and structure is different. However in early times, there were issues by glue or other chemicals used.