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Cleaning chemicals and foam off-gassing can shatter CDs, joining bit rot and laser rot as preservation threats

Tomshardware 3 min read ↗ Original

CDs and DVDs can suffer catastrophic shattering from cleaning chemicals or off-gassing foam padding, adding to bit rot and laser rot as data preservation risks.

WHY IT MATTERS

For engineers preserving data on optical media, this means physical storage and cleaning choices can destroy discs as surely as bit rot. Polycarbonate substrate degradation from ammonia off-gassing or chemical cleaners is a failure mode to account for in archival workflows.

Written by elseif from the cluster below · every claim links back to a source

The three things worth knowing

01

Cleaning and polishing CDs can cause chemical cracking of the polycarbonate substrate.

02

Foam padding in sealed cases can off-gas ammonia compounds, weakening or cracking the polycarbonate.

03

DVDs are less susceptible because they use two polycarbonate halves bonded with adhesive, unlike CDs' single layer.

THE CLUSTER

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Tomshardware Catastrophic optical disc shattering blamed on cleaning chemicals and packing foam — another data preservation concern to add to bit rot and laser rot Open ↗