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authorDaniel Baumann <mail@daniel-baumann.ch>2015-11-07 06:48:02 +0000
committerDaniel Baumann <mail@daniel-baumann.ch>2015-11-07 06:48:02 +0000
commiteedae6d7d5ba2066e7258b1b6265b1e6cc47fdf6 (patch)
treeb2ff3a96fc54529e5f8bb9d9db0f9f0cc3a6ab4f /README
parentAdding upstream version 0.5. (diff)
downloadlzd-eedae6d7d5ba2066e7258b1b6265b1e6cc47fdf6.tar.xz
lzd-eedae6d7d5ba2066e7258b1b6265b1e6cc47fdf6.zip
Adding upstream version 0.6.upstream/0.6
Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
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1 files changed, 25 insertions, 1 deletions
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@@ -13,6 +13,30 @@ correctly decompress the concatenation of two or more compressed files.
The result is the concatenation of the corresponding decompressed data.
Integrity of such concatenated compressed input is also verified.
+The lzip file format is designed for long-term data archiving, taking
+into account both data integrity and decoder availability:
+
+ * The lzip format provides very safe integrity checking and some data
+ recovery means. The lziprecover program can repair bit-flip errors
+ (one of the most common forms of data corruption) in lzip files,
+ and provides data recovery capabilities, including error-checked
+ merging of damaged copies of a file.
+
+ * The lzip format is as simple as possible (but not simpler). The
+ lzip manual provides the code of a simple decompressor along with a
+ detailed explanation of how it works, so that with the only help of
+ the lzip manual it would be possible for a digital archaeologist to
+ extract the data from a lzip file long after quantum computers
+ eventually render LZMA obsolete.
+
+ * Additionally lzip is copylefted, which guarantees that it will
+ remain free forever.
+
+A nice feature of the lzip format is that a corrupt byte is easier to
+repair the nearer it is from the beginning of the file. Therefore, with
+the help of lziprecover, losing an entire archive just because of a
+corrupt byte near the beginning is a thing of the past.
+
The ideas embodied in lzd are due to (at least) the following people:
Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrey Markov (for
the definition of Markov chains), G.N.N. Martin (for the definition of
@@ -20,7 +44,7 @@ range encoding), and Igor Pavlov (for putting all the above together in
LZMA).
-Copyright (C) 2013 Antonio Diaz Diaz.
+Copyright (C) 2013, 2014 Antonio Diaz Diaz.
This file is free documentation: you have unlimited permission to copy,
distribute and modify it.