Quote:
Originally Posted by murraypaul
Unfortunately, some of them do degrade, depending on the chemicals used in the writable layer. Especially badly if they are subject to UV in visible light.
|
Oh, I agree. Cheap CD-Rs will certainly degrade. But for backup purpose I always buy good quality ones, and haven't yet had any problems. I always store them in the dark - as you say, UV light is a significant source of degradation in the dye that stores the data.
I must correct something I said earlier. It's CDs - not CD-Rs - which should be good for 100+ years lifetime. CDs store the data in the form of physical "pits", which should last virtually indefinitely.