Package: par2 Version: 0.4-2 Severity: normal On a 700MB set of 48x15MB files I downloaded from usenet [1], par2 thinks it can repair, but the repaired file fails verification.
[EMAIL PROTECTED]:/var/cache/tmp/mst3k$ par2 r MST3K___0206___20010709___Ring_of_Terror.vol01+02.par2 par2cmdline version 0.4, Copyright (C) 2003 Peter Brian Clements. par2cmdline comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See COPYING for details. Loading "MST3K___0206___20010709___Ring_of_Terror.vol01+02.par2". Loaded 100 new packets including 2 recovery blocks There are 48 recoverable files and 0 other files. The block size used was 355212 bytes. There are a total of 1984 data blocks. The total size of the data files is 693366677 bytes. Verifying source files: ... Target: "MST3K___0206___20010709___Ring_of_Terror.part32.rar" - found. Target: "MST3K___0206___20010709___Ring_of_Terror.part33.rar" - damaged. Found 40 of 42 data blocks. Target: "MST3K___0206___20010709___Ring_of_Terror.part34.rar" - found. ... Scanning extra files: Repair is required. 1 file(s) exist but are damaged. 47 file(s) are ok. You have 1982 out of 1984 data blocks available. You have 2 recovery blocks available. Repair is possible. 2 recovery blocks will be used to repair. Computing Reed Solomon matrix. Constructing: done. Solving: done. Wrote 14680064 bytes to disk Verifying repaired files: Target: "MST3K___0206___20010709___Ring_of_Terror.part33.rar" - damaged. Found 40 of 42 data blocks. Repair Failed. I gather that Reed Solomon codes can sometimes require more par blocks than normal, if the missing blocks form unlucky polynomial coefficients or something... Maybe par2 isn't detecting that? [1] My data is an episode of Mystery Science Theater 3000, which apparently is legal to copy, see dapcentral.org :) I won't attach my input data set to this bug report, but I downloaded it from alt.binaries.multimedia.mst3k b59f0c90baa2662a6c642995301ab892 MST3K___0206___20010709___Ring_of_Terror.part01.rar 60547537dd35a4b8f87a03b1e85c8913 MST3K___0206___20010709___Ring_of_Terror.part02.rar e40fbf5800b2bbb3b7640bc364a14483 MST3K___0206___20010709___Ring_of_Terror.part03.rar a2b259220a6354ddf1663ade239bf8d5 MST3K___0206___20010709___Ring_of_Terror.part04.rar f25ccae1623952650b6ea212b203569c MST3K___0206___20010709___Ring_of_Terror.part05.rar 4d9ecacaa6c86d113fe40e77e0cf16cb MST3K___0206___20010709___Ring_of_Terror.part06.rar 53898c54ac3460e906062cf5f562e65a MST3K___0206___20010709___Ring_of_Terror.part07.rar 43328f4903e8536800204dbb2f0f13e8 MST3K___0206___20010709___Ring_of_Terror.part08.rar 0f4d3f7f6b2c34905f78e16c50a48c6a MST3K___0206___20010709___Ring_of_Terror.part09.rar 9901fa28c7a036f0e8f32f52851d1a6c MST3K___0206___20010709___Ring_of_Terror.part10.rar 96929b59c640688dc2c31a6bb5155cb3 MST3K___0206___20010709___Ring_of_Terror.part11.rar a992e215afdc371e6486d1f85af18b1b MST3K___0206___20010709___Ring_of_Terror.part12.rar ed4e9300bd94f7ff37d805b5b6b2650c MST3K___0206___20010709___Ring_of_Terror.part13.rar 073d633c04e41fa5e38da4347da75485 MST3K___0206___20010709___Ring_of_Terror.part14.rar c729fe5910f918dfc14a6dd5904119ba MST3K___0206___20010709___Ring_of_Terror.part15.rar b4c996b030306b477d5988ce3625fde2 MST3K___0206___20010709___Ring_of_Terror.part16.rar 4333d1b49be6894c5ee3070aef732007 MST3K___0206___20010709___Ring_of_Terror.part17.rar e14e6377d4e08b52665e6fa5e278dd19 MST3K___0206___20010709___Ring_of_Terror.part18.rar f302bed250c299882c2d839b71f2b094 MST3K___0206___20010709___Ring_of_Terror.part19.rar 092f0390c2fe55d820aa87a8995e295a MST3K___0206___20010709___Ring_of_Terror.part20.rar bbad13589840277f513243180ee72bc6 MST3K___0206___20010709___Ring_of_Terror.part21.rar 46d5c89aa15189b78729e021feea8913 MST3K___0206___20010709___Ring_of_Terror.part22.rar b77153e0191bbd5324fb43901454812f MST3K___0206___20010709___Ring_of_Terror.part23.rar b7ad1a60cb0e861b4ef98a70a72ed044 MST3K___0206___20010709___Ring_of_Terror.part24.rar 1366b6abd26a5615e7b329975dfbf57b MST3K___0206___20010709___Ring_of_Terror.part25.rar 88917d559e2f88535d51b9c1c251c62f MST3K___0206___20010709___Ring_of_Terror.part26.rar e003212a721b1c1b736b3e2be930f2cd MST3K___0206___20010709___Ring_of_Terror.part27.rar 644b9ed8bada10b6c8ece4e7afb2a0ca MST3K___0206___20010709___Ring_of_Terror.part28.rar 09a0417bfcb43ef090773e7bdb8dba77 MST3K___0206___20010709___Ring_of_Terror.part29.rar a11bdd77171b9c1f3ed9f4766c1b2cee MST3K___0206___20010709___Ring_of_Terror.part30.rar 6cc73909bc5e5deaa0b7f7423741b428 MST3K___0206___20010709___Ring_of_Terror.part31.rar aeee6dbb2f91168be48ca30837e67beb MST3K___0206___20010709___Ring_of_Terror.part32.rar 8cecbea9c2d84d86a4d9d762f5060744 MST3K___0206___20010709___Ring_of_Terror.part33.rar 9cc5e8adeca81dead220ecb5cb20e410 MST3K___0206___20010709___Ring_of_Terror.part33.rar.1 0b2ba2066591bec9a9a77681a61a9877 MST3K___0206___20010709___Ring_of_Terror.part34.rar b7d740d3dff7ed7b5b52ea6cfc6dfb13 MST3K___0206___20010709___Ring_of_Terror.part35.rar 3235a30de7b9689484a4e1191da27741 MST3K___0206___20010709___Ring_of_Terror.part36.rar 4bbba684c187c82a481e439d2acc0243 MST3K___0206___20010709___Ring_of_Terror.part37.rar 396314c10ff1a2e6fcaa045cc77a0201 MST3K___0206___20010709___Ring_of_Terror.part38.rar a8b94582ccc5bfa05d71e213a763340d MST3K___0206___20010709___Ring_of_Terror.part39.rar a69014a8313e0e5854e98c2b630582f2 MST3K___0206___20010709___Ring_of_Terror.part40.rar 37742f95b2f507da878f9ad61f71d8ff MST3K___0206___20010709___Ring_of_Terror.part41.rar 5a00755ab55df2334e5470d53ea259e7 MST3K___0206___20010709___Ring_of_Terror.part42.rar 7c421558a6a4fbc9827edc06a6f43067 MST3K___0206___20010709___Ring_of_Terror.part43.rar d71ac043277aa8cf527c1b866864d407 MST3K___0206___20010709___Ring_of_Terror.part44.rar b38d65875d0f871f6dcff78287521bb3 MST3K___0206___20010709___Ring_of_Terror.part45.rar bbfdefdb9783a8f669ee2513ba146464 MST3K___0206___20010709___Ring_of_Terror.part46.rar c79e14647bd03e592d533e3fe2b82e78 MST3K___0206___20010709___Ring_of_Terror.part47.rar 01bf81d93d1baf97a55ecb0cd6dcf724 MST3K___0206___20010709___Ring_of_Terror.part48.rar b7f8aaf29c886530a4c55bddc49c35e3 MST3K___0206___20010709___Ring_of_Terror.vol01+02.par2 email me if you want me to do something like put these files on a web server where you can get them. BTW, this is reproducible. My computer doesn't randomly have data errors, and I've stress-tested it quite thoroughly. -- System Information: Debian Release: 3.1 APT prefers testing APT policy: (990, 'testing'), (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 2.6.10-rc2-mm4-vanilla Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages par2 depends on: ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an ii libgcc1 1:3.4.3-6 GCC support library ii libstdc++5 1:3.3.5-8 The GNU Standard C++ Library v3 -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
