Deterioration of this material is the primary cause for disc degradation and, ultimately, “end of life” for the disc, assuming proper physical handling.Įnvironmental factors can affect the rate of disc degradation. The life expectancy (LE) of optical discs depends on many factors, some controllable by the user, others not.įactors that affect disc life expectancy include the following:Īs noted previously, the three basic types of CD and DVD discs-ROM, R, and RW and RAM-each use a different data layer material (molded aluminum, organic dye, or phase-changing film, respectively).
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