Knowledge Base
Quick guides to help you get the most out of Permanent Memory.
Understanding Disc Capacity
Standard Capacity
Each M-DISC can hold up to 100GB of data. Whether you use 5GB or 95GB, you get the same battle-tested storage medium.
With Parity Protection
When adding parity files for error recovery, we recommend 85GB maximum to leave room for the recovery data.
- • 10% overhead for error correction files
- • Enables manual recovery from small amounts of data corruption using included parity files, on disc
- • Files require extraction (not directly viewable)
Why Not Wait to Fill Up the Disc?
Archive what matters now
Don’t wait until you’ve “filled it up.” Each disc offers the same protection - and the same peace of mind - whether you use 5GB or 95GB. It's better to preserve what you have now than risk losing it later.
Why archive now?
- • Protect memories while they’re still fresh
- • Avoid losing files to forgetfulness or accidents
- • Low cost, high peace of mind: even for small batches
- • Archiving is a habit, not a one-time dump
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