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That is assuming you have to reverse engineer it. While it is true that some proprietary formats will inevitably be lost to time, a lot of open formats could be
by 7steps2much 5y ago
That is assuming you have to reverse engineer it. While it is true that some proprietary formats will inevitably be lost to time, a lot of open formats could be reconstructed in the future simply by preserving the format specification. Think ogg or mkv for example.