One thing well illustrated by history is that the records that endure are the ones that got chiseled into stone or, failing that, at least put on paper. Given the issues of long-term reliability relating to hard drives, flash memory, and writable optical media, someone wishing to preserve information for the distant future might be well advised to make a paper copy of the parts that are most critical.
PaperBack is a mechanism for facilitating exactly that. It includes software to convert about half a megabyte of any kind of data into a pattern that can be printed onto paper. For some kinds of highly compressible information, it can manage three megabytes per page – as much as two old 3.5″ diskettes. It also includes code for scanning the data back into a digital form. While I doubt anybody will be doing this for multi-gigabyte video files, it may be a worthwhile thing for some kinds of information. Anyone building the modern equivalent of an ancient Greek tomb might be especially well advised to consider the software. Hopefully, future generations will prove as capable at deciphering JPEG images as those in the recent past did at deciphering Linear B.
A compiled version of the software is available for Windows. Mac and Linux users will need to compile the code for themselves.