Afaik these systems can all be handled pretty simply and just amounts to storing some metadata to reconstruct answers to challenge/response protocol similarly to how you can rebuild the physical bitstream from decoded data on the fly instead of storing the expanded bitstream form
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I think it's important to recognize that the purpose of archival is not to perfectly replicate the original, but to perfectly replicate the *useful information* encoded in the original. I.e. there is no point in storing voxels of atoms.
In that sense, it probably makes more sense to have a standard but *extensible* format that can encode all useful data at a common abstraction level for optical media *and* platform-specific metadata.
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Something along the lines of the PNG format and required/optional chunks?
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Yes. Honestly, the mistake that all game dump formats make is lack of extensibility. It makes it impossible to fix these problems post facto in a backwards compatible way. Ditch the raw ROM/ISO dumps already, we've known how to make sane file formats for ages now.
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