What is the average lifespan of recordable Blu-ray discs?
How long they will last depends on a few factors.
The average lifespan of recordable Blu-ray discs (BD-R) varies, with the cheapest discs lasting about five to 10 years on average according to Canadian Conservation Institute data. However, higher quality BD-Rs can potentially last 10 to 20 years, and rewritable BD-R discs may extend that to 20 to 50 years. This longevity is due to advancements like silicon and copper alloy recording layers and gold metal layers in better BD-Rs.
Factors like manufacturing quality, environmental conditions and disc rot can impact the lifespan of BD-Rs. Disc rot is an umbrella term for various forms of decay, including oxidized reflective layers, moisture causing mold, and UV light exposure. Signs of disc rot include discoloration or spots. While Blu-ray may be a more affordable option for archival storage compared to flash memory, its fragility and declining industry support are concerns.
For critical data, it is recommended to use a combination of storage methods, including cloud storage and multiple local backups, to ensure long-term accessibility.
Written by urgent.news from Engadget's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
