Your CD and DVD backup disks won't last forever. Back them up before it’s too late

The digital age has transformed the way we handle information. Never before could humankind record and store so much information and in such diversity. While the amount of data has increased exponentially, the predicted lifespan of the storage media hardly exceeds the lifetime of a human. Your CDs and DVDs are plastic, but they may or may not last forever. So how long do CDs, DVDs, and Blu-ray optimal discs last? PrimeArray will help to try and answer this question! The Lifespan of Different Optical Discs? Optical discs have been commercially available since the 1980s. Since then, there have been advances in the actual technologies and materials used in CDs, DVDs, and Blu-rays, meaning information is much safer now than it ever was before. While some estimates predict a huge lifetime for optical discs, we don’t agree. Unless they are housed in a clean room handled the gloves with the perfect temperature and light. However, by being aware of the lifespan of optical discs and what causes them to break, you can make choices to preserve survival of your stored data. To understand what limits the life span of optical discs, we first need to look at how they are built-up. All optical discs have three key layers in common: • • •

Coating layer that protects the reflective layer. Shiny layer that reflects the laser. Polycarbonate disc layer that stores the data.

A label is applied above the coating layer and re-writable discs contain a dye layer between the reflective and protective layers. One factor that determines the maximum lifespan of an optical disc is the type of reflective layer. Other factors include the overall quality of the raw materials used and manufacturing. Perhaps as you’re reading this article you may have encountered an aged / damaged disc but been unaware. An age disc may show signs of: (1) (2) (3) (4)

oxidation or corrosion of the reflective layer chemical reactions with contaminants such as dirt grease from your fingertips ultraviolet/light damage breakdown of disc materials/bonding a.k.a. top layer flaking

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Your CD and DVD backup disks won't last forever. Back them up before it’s too late

Published on Jun 9, 2022

primearraysystems

The digital age has transformed the way we handle information. Never before could humankind record and store so much information and in such diversity. While the amount of data has increased exponentially, the predicted lifespan of the storage media hardly exceeds the lifetime of a human. Your CDs and DVDs are plastic, but they may or may not last forever. So how long do CDs, DVDs, and Blu-ray optimal discs last? PrimeArray will help to try and answer this question! The Lifespan of Different Optical Discs? Optical discs have been commercially available since the 1980s. Since then, there have been advances in the actual technologies and materials used in CDs, DVDs, and Blu-rays, meaning information is much safer now than it ever was before. While some estimates predict a huge lifetime for optical discs, we don’t agree. Unless they are housed in a clean room handled the gloves with the perfect temperature and light.