On Friday, 23 December 2011 at 03:24:27 UTC, Walter Bright wrote:
On 12/22/2011 11:27 AM, Mirko Pilger wrote:
i use 7z myself for backups for a couple of years now
I quit using compression for backups. The problem was that if
the backup media lost even one bit, you lose the entirety of
the compressed file(s). Yes, this happened.
It's also a problem because my file searching programs don't
look inside compressed files.
RAR (and some others) supports "recovery records" and "recovery
volumes" (redundant data). The cool thing about them is that with
a recovery record of 10%, ANY 10% of the archive's blocks may be
lost and the entire archive can be recovered. It was a life-saver
back in the days of floppies.
