I have CDRW discs from four different manufacturers and only one has behaved "stably" in my limited use of them. And I've used four different CD rewriters too.
The biggest problem was with Memorex-Infodisc type. I didn't touch newly formatted 3 of them for two months, then when I came to use them again, none would record or format successfully. Further, recording audio would throw up glitches on playback.
The 5 Memorex-Plasmon type generally still work after two years, apart from one disc where only a few directories of what was stored can now be accessed.
A Ricoh was readable for 3 years until I copied data off it last week, and now can no longer be recognized.
A fujifilm is going strong after 3 years.
For these discs to fail, storage in a nuclear reactor or even just sunlight is not required. In a cool, dry room sitting comfortably in their cases is just enough.
What is WRONG with these manufacturers? The lack of reliability in CDRW is absolutely APPALLING. It is completely unacceptable. I have never experienced anything like it in computer data storage.
As it stands, I can only trust CDRW to make a backup of a few files temporarily that are stored on my hard drive, until I have such quantity of files that I can write a far more reliable CDR.
Is CDRW media inherently unstable?