Floppy Disk Preservation

Active Projects

Jouyou X68000 / Jōyō X68000 / 常用X68000 (hashes for the masses)

Pristine X68000 / 純X68000 (hashes for the classes)

Floppy Archival Project (low-level disk imaging)



File format proposals (it's technical)

Miscellaneous edifying material


  • Pristineness

    Images should be preserved in their original, unmodified form.

  • Reproducibility

    Images should be in a form that can be consistently reproduced. Any solution that produces inconsistent end products every time the source medium is dumped is unacceptable.

  • Anti-counterfeiting

    We want to make counterfeiting as difficult as practical without interfering with the primary goal of preservation.


  • Publish hashes

    This is not a piracy operation.

  • Preserve original media

    All hashes published will be based on dumps from original media. Measures will be taken to prevent improperly sourced or counterfeit material from being used.

  • Verify that the resulting images are correct and pristine

    Due to the nature of the medium, there are limitations as to how certain we can be. Confidence scores are used to reduce the likelihood of publishing defective or non-pristine image hashes.

    As part of the analysis process, copy protections are also checked and verified, even though the results are not yet publicly available due to technical reasons.

  • Improve floppy drive emulation through research



    (1) .net

    (2) junkerhq

    (3) preservation

    Combine the above in the correct order (3, 2, 1) along with an 'at' sign to get the email address.

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    If email is too burdensome, @Artemio on Twitter is another avenue for getting in touch. This is not an official news feed, however.

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