alt Hacker NewsCan a CD-R drive force a second pass burning over existing data to make the disc unusable? Perhaps with drive firmware modification.
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dist-epoch • last Wednesday at 9:17 AM
It would be safer to use a read-only drive when reading back the backups.
Afaik you can "erase" contents of a disk with open session. Data is still there just invisible without specialized tools, enough to fool non nerds.