On 7/21/18 10:26 AM, Jim Manley via cctalk wrote: > Even mass-produced > read-only optical media (e.g., movie/video content DVDs) can become > unreadable over time because the reflective layer (typically aluminum) > under the data-encoded layer corrodes due to the chemistry of the dyes and > encasing plastic, and heat accelerates the process. The edge of the disk is SUPPOSED to be sealed. On cheap media, you see it oozing, and the aluminum oxidizing from the edge inward. This was pointed out to me already in the late 90's.
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