Xz format inadequate for long-term archiving
<i>Unsafe: 1 Likely to cause severe data loss even in case of the smallest corruption (a single bit flip). 2 Likely to produce false negatives.</i><p>It does seem like xz is somewhat overengineered, but I don't think that's a characteristic unique to it; any other algorithm with similar compression performance will yield similar behaviour on corrupted data, since the whole point and why compression works is to remove redundancy. I say use something like Reed-Solomon on the <i>compressed</i> data, thus introducing a little redundancy, if you really want error correction.