CHANGELOG

#  dvdisaster changelog -*-text-*-
#  dvdisaster: Additional error correction for optical media.
#  Copyright (C) 2004-2017 Carsten Gnoerlich.
#  Copyright (C) 2019-2021 The dvdisaster development team.
#
#  Email: support@dvdisaster.org
#
#  This file is part of dvdisaster.
#
#  dvdisaster is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  dvdisaster is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with dvdisaster. If not, see <http://www.gnu.org/licenses/>.

0.79.10.patchlevel-5 11-05-2025 *UNOFFICIAL*
- fix: GUI fileopen dialog crash

0.79.10.patchlevel-4 04-05-2025 *UNOFFICIAL*
- enh: port the GUI to gtk3
- enh: speedup RS03 repair
- enh: add support for HD-DVD(-R(W))
- fix: RS03 exhaustive search on BD-R when --no-bd-defect-management is used
- fix: a few coding errors found by static analysis (no major impact)
- fix: disable strip button on GUI when working

0.79.10.patchlevel-3 17-02-2024 *UNOFFICIAL*
- fix: corrupt data under Windows with mmap
- fix: re-enable buttons after Split is used

0.79.10.patchlevel-2 17-09-2023 *UNOFFICIAL*
- re-introduced MacOS build. No other functional change since v0.79.10-pl1.

0.79.10.patchlevel-1 09-10-2021 *UNOFFICIAL*
- sync: integrated changes from latest upstream,
        please refer to the entries below for details.

0.79.10 24-09-2021
 - command line only version can be generated by
   using ./configure --with-gui=no
   The cli version will not be linked against gtk+ and it auxiliary libs.
   However, glib is still required as it provides some basic functionality
   for multithreading and string operations.
 - Fixed a checksum buffering bug which was introduced in 0.79.6:
   If user reads in CD A, then switches to image of CD B in the file dialogue
   and creates error correction data, depending on the codec some invalid
   checksums from CD A will be drawn into the ecc data for CD B. 
 - Fixed crc buf related memory leak while reading/scanning
 - run_regtest will now insist that both image and ecc arguments are given.
   This prevents stale arguments when running in GUI mode.
 - Test case motivated changes/fixes:
   - in general: fixed missing/inappropriate parameters in test cases for GUI mode
   - RS01_scan_tao_tail_with_ecc
     corrected wording of warning message (scan mode won't alter the image)
   - RS01_scan_medium_with_dsm
     RS01_read_medium_with_dsm 
     substantiated reading summary
   - RS01_read_medium_with_dsm_in_image
     removed reporting of displaced sectors in the image (only displaced
     sectors in the medium matter!)
   - RS02_ecc_recreate_after_read_rs02
     crc buf now considered valid (when stripping the data portion from
     the read image)
   - RS03i_plus_56_bytes
     RS03i_with_ecc_file_header
     fixed misconfiguration of testcase for GUI
   - RS03i_missing_header (and most following verify tests)
     prognosis would declare image as uncorrectable because treatment
     of unreadable ECC headers was broken.
   - RS03i_missing_header3/4
     Test case created an uncorrectable image (which did test the required
     properties, though). Changed to a test-equvalent correctable image.
   - RS03f_ecc_recreate_after_read_rs02
     rs03-create.c:prepare_header() called CrcBufValid() with wrong values when
     creating error correction files for an already augmented image.
  - Merged fixes from Stéphane Lesimple's version
   - printf argument debugging and PRId64 etc. format strings
   - -Werror setting
   - "easy" patches; non-trivial changes have been noted and
      will be processed later
   - Merged Debian patches:
     08 gmake detection
     10 dvdisaster.desktop
     12 up to spelling
     17 API warnings (partially merged)
     29 fix more typos
     33 - obsoleted -
     34 format security warning
     35 archived homepage (rewritten with references to the pdf manuals)
     

0.79.9 14-05-2021
- Revised code for clean compile under gcc-10 and Debian 11 (sid) or Slackware 15
- added -Wno-deprecated-declarations to shield against a flood of warnings
  resulting from gtk-2 / glib mismatches
- safeguarded install and uninstall against blanks in path names

0.79.8 11-05-2021
- Revised code for clean compile under gcc-8 and Debian 10 (Buster).
- Simplyfied display of URLS and PDF via xdg-open
- minor rework of user manual
- added skip feature to regtests: sometimes, output rows are permutated due to
  a race condition between printf()s. This is rather hard to control.

0.79.7 09-04-2019
- Cleanup of documentation and files for new contact address

0.79.6.patchlevel-9 27-06-2021 *UNOFFICIAL*
- fix: using --strip in console without X server would segfault at program exit
- enh: windows: hide useless background console
- enh: linear read: log amount of correctly read sectors during a sesssion
- enh: log window: use a bigger scrollback buffer
- doc: regenerate codecs.pdf to get proper page numbers
- chore: fix codec-specs Makefile

0.79.6.patchlevel-8 22-02-2021 *UNOFFICIAL*
- enh: gui: medium-info: add an 'exhaustive search' when not enabled in options
- enh: gui: prefs: add a visual cue of tooltips

0.79.6.patchlevel-7 30-01-2021 *UNOFFICIAL*
- feat: add a new button to remove ECC data from an iso ("strip"), restoring an ISO to its previous non-augmented state (option: -z/--strip)
- enh: try harder to find RS02/RS03 sigs in non-exhaustive mode (#19)
- enh: add --examine-rs0[23] in --debug mode for CLI, to force exhaustive search with --medium-info
- enh: more logs around exhaustive RS03 search in verbose
- fix: windows: get rid of the last few warnings, build with -Werror for releases
- chore: update tests, locales & readme

0.79.6.patchlevel-6 17-01-2021 *UNOFFICIAL*
- fix: allow blank media in Preferences>Error correction>RS02>query medium (#19)
- fix: tested compilation under clang, detected a reversed order or arguments in a call to memset(), fixed
- fix: printf: added --with-debug-print-format configure option to permit compile-time detection of printf format errors:
  - fixed some potentially severe ones
  - replaced %ldd/%ld by PRId64 to remove warnings on all archs
- fix: appimage: adjust docdir for help menu
- chore: ensure configure works properly even if user adds -Werror to CFLAGS
- chore: added --with-werror to configure
- chore: replaced CLI_ONLY=1 by --with-cli-only in configure
- chore: update locales
- chore: debug printf format in GitHub actions tests

0.79.6.patchlevel-5 12-01-2021 *UNOFFICIAL*
- fix: don't error on blank media in medium-info (#19), bug present upstream since 0.79.5
- fix: gui: fix the 'SetLabelText() failed' error caption on the medium-info window (#19), bug present upstream since 0.72.3
- fix: add CHANGELOG, TODO, CREDITS to dist for the Help menu
- chore: appimage: add missing gtk engines and adjust docdir for help menu
- chore: enhance packaging, update locales, changelog et al.

0.79.6.patchlevel-4 04-09-2020 *UNOFFICIAL*
- feat: allow adaptive reading again*
- feat: add --permissive-medium-type option
- fix: lift the limitation on the number of cmdline args
- fix: lift segfault when aborting adaptive read
- fix: ensure variables are initialized before dereferencing
- chore: re-enable adaptive read regtests
- chore: move *.c *.h to src/, and build in build/
- chore: build: finally really fix make parallelism
- chore: use gcc -pipe to speed up the build
- chore: rename CLI version to NOGUI in the version tag
- chore: add missing target dependency in Makefile
- chore: update readme
- chore: locales update

*:The original author disabled adaptive reading
  specifically in 0.79.6 (see changelog below), as it
  doesn't handle RS03 correctly yet. In this patchlevel
  we enable it again for media without (detected) ECC data,
  and for media protected with RS01 or RS02. If we detect RS03,
  we tell the user the behaviour is unpredictable/undefined,
  and recommend using linear reading instead.

0.79.6.patchlevel-3 01-09-2020 *UNOFFICIAL*
- fix: windows: flavor in build version was always 'UNKNOWN'
- fix: windows: the config & log files were not written properly

0.79.6.patchlevel-2 30-08-2020 *UNOFFICIAL*
- fix: Adjust BDXL_QL_SIZE and rollback BD_SL_SIZE to upstream version*
- feat: add --no-bdr-defect-management to produce bigger augmented images with RS03
- chore: remove 2 compiler warnings under Linux
- chore: automatically run regtests under Win32, Win64, Linux64 (regular and CLI-only) on pull requests
- chore: add a Linux CLI-only static make target
- chore: fix make parallelism
- chore: use tags to describe the build

*:BD_SL_SIZE was mistakenly modified in 0.79.6-pl1, we restore the
  previous upstream value to avoid having several dvdisaster versions
  in the field with different values set for it.

  If you created an RS03 augmented image with 0.79.6-pl1, you'll still
  be able to conduct a repair of the image, should it be damaged,
  by using any 0.79.6 version (with or without patchlevel), using
  the following additional command-line parameters:
  dvdisaster -f --debug -n 12219392
  On the patchlevel versions, this is equivalent to saying:
  dvdisaster -f --no-bdr-defect-management

  BDXL_QL_SIZE (introduced in pl1) was also adjusted in this version,
  To repair a damaged BD-R quadruple layer image created by pl1:
  dvdisaster -f --debug -n 62500864
  On the patchlevel versions, this is equivalent to saying:
  dvdisaster -f --no-bdr-defect-management

  The values that were present in pl1 were corresponding to a BD-R
  burnt without formatting it for defect management first, which enabled
  more space for parity data. You can still do it if you want, with
  --no-bdr-defect-management (see manpage), but to follow upstream,
  the default number of sectors for all BD-R implies that defect
  management is enabled.

0.79.6.patchlevel-1 20-08-2020 *UNOFFICIAL*
- This is an UNOFFICIAL version, not from the original author,
  based on the latest available pre-release, 0.79.6.
  Changes will be kept minimal (this is not a hard fork),
  to be able to merge in any new upstream version should it arise.
- Most patches from the Debian maintainer have been applied,
  up to Debian version 0.79.6-5. Patches that are purely Debian
  specific have been omitted.
- This release keeps the debian/ folder untouched, with only
  the patches/series file adjusted. Building the package has
  not been tested.
- Added support for BDXL-QL (quadruple layer, 128GB)
- Added support to compile a CLI-only version, without
  the GTK dependency (only glib2), compile with:
  $ CLI_ONLY=1 ./configure && make clean && make -j4
- Added support to compile a Windows version under MingW (tested
  with MSYS2)
- All regression tests are passing on Linux 64, Win 32 and Win 64.
- A few tweaks and fixes around have been done while massively
  amending the source files to make the CLI-only version possible.
  This hopefully removes a few quirks without adding too many.

0.79.6 20-11-2017
- The Verify/Test option will now output dvdisaster version
  numbers always in x.yy.zz format, as the old scheme
  using x.yy (devel|pre|rc|pl)-zz is no longer used.
- The "medium info" tool will now correctly show the blank
  capacity (was previously always shown as zero)	
- added support for BDXL-TL (triple layer, 100GB)
- Sector CRC sums and the image MD5 sum are collected during
  reading the medium and can be re-used by the ecc data creation
  process. Speeds up ecc generation and enables RS03 image
  checksums when generating ecc data was preceeded by a read.

0.79.5 16-12-2015
       This is pretty much a relaunch of the project,
       the internet site and the accompanying documentation.
       There are too much changes for a detailed report.

The most prominent feature of this version is that
the multithreaded RS03 codec reached production
quality, and all required features have been implemented.
A few things will be added with the next releases:
- adaptive reading is currently disabled as it does
  not support RS03 yet and would crash or misbehave
  on RS03 error correction data
- a heuristic for an exhaustive re-discovery of RS03
  structures in a badly damaged medium is missing in
  the decoder
But these things should not keep you from using RS03,
as the encoder is complete and future decoder enhancements
do not affect already created RS03 data.

0.79.4 07-10-2012 (not released)
       ## 0.79.4 is a technical release in order to freeze
       ## and archive some parts of the source code.
       ## Do not use for anything productive. 
       ## The next useful release will be 0.79.5.
- optical drives would only be detected for /dev/pass[0-9]
  on FreeBSD. Fixed to work with arbitrary /dev/pass
  numbers. Thanks to Bill Eisele for reporting this.
  A similar problem was found and fixed for Linux.
- blocked menu selection when any other action is in progress
  (thanks to D. Herbold for reporting the resulting defects).
- made actions properly shut down (e.g. remove incomplete ecc data)
  when closing the window or pushing the "Quit" button.
- changed sources for clean compile on gcc 4.4.3
- added #include <zlib.h> for libpng 1.5 compatibility
  (thanks to Thomas Klausner for hinting at this!)
- introduced internal Image object for unified access to
  optical media and on disk ISO images; lots of internal
  changes and fixes due to that
- added --ignore-iso-size option
- Jindřich Šesták took over the Czech translation,
  provided up-to-date HTML documents and manual pages,
  made all (!) language versions of the manual validate
  cleanly, and fixed several other issues in the HTML/PHP
  sources.
- fixed bug in pngpack; thanks to Jindřich Šesták for
  noting this!
- added remaining patches from Jindřich for Czech 
  online manual. Big Thanks!
- more comprehensive and unified version information 
  for banner, --version, log window and log file to
  aid in working on bug reports
- hardcoded icons to defeat theming
- changed glib.h include for compatibility with glib 2.32
- removed Darwin / Mac OS X support
- synced with dvdisaster 0.72.4 fixes
- completed RS01 and RS03 specification in the
  papers subdir

0.79.3	21-11-2010
- Switched Linux SCSI driver default to SG_IO ioctl().
- Michael Klein provided Altivec optimization for
  the RS03 encoder and valuable hints for general
  RS03 encoding speedup
- included Debian patches 04-manpage.patch,
  06-remove-encoding-from-desktop-file.patch,
  07-fix-spelling-errors-in-binaries.patch
- fixed and documented -n command line options for RS02.
  Thanks to Jack Giles for noting this.
- reworked configure for current NetBSD release
- removed inofficial Solaris support

0.79.2  28-02-2010
Semantic Changes
The new missing sector marking method is now the default.
When interchanging images with dvdisaster 0.70 or older,
use --old-ds-marker or the respective setting under
Image/Image format in the preferences setting.

Changes
- RS03 encoding will check for defective sectors now
- fixed crash when aborting RS03 encoding
- made the new missing sector marking method the default
- confirmation dialogues for overwriting images and ecc files
  are now configurable via preferences

0.79.1 07-02-2010
       A word of caution: This version is still evolving and some parts
       are not yet implemented. It may contain severe bugs and fail in 
       non-obvious ways, even in functions which worked in previous versions. 
       Do not process important data with this version and do
       not keep images and error correction data for archival purposes;
       that's what the stable version 0.72 is for.

Semantic Changes
- query-size option replaced with -a/--assume option.
  command line default is now NOT to do exhaustive search
  for RS02 information; add -a RS02 to enable it
  (old behaviour: exhaustive check was on; required
   --query-size=udf to disable it)
- same changes in the preferences dialogues: 
  "Image size" field replaced with 
  "Error correction data recognization" options.

Changes
- added MIN_TRANSFER_LEN and length sanity check as workaround 
  for buggy drive chipsets (thanks to R.G. for reporting this
  and helping with debugging output)
- added -tq command line option as suggested by Mikhail Arefiev
- fixed alignment brokeness between 32bit and 64bit systems
  in ecc header and crc sectors
- added RS03 encoding (GUI)
- added RS03 verifying (CLI and GUI)
- fixed RS02/RS03 crash when encoding invoked without image file
- added commandline RS03 encoding (singlethreaded/multithreaded)
- added RS03 decoding and verifying (CLI and GUI)
- fixed "typical uses" links in welcome screen (Thanks to C. Steigies)
- added warning when same files are selected for .iso
  and error correction data (Thanks to A. Postkutscher
  for suggesting this!)
- removed ASPI driver and ASPI/SPTI splitting logic
- removed 2GB file splitting

0.72 (pl4) 07-04-2012
- fixed crash in scsi layer for FreeBSD
- fixed double free when reading mode page 1 fails
- fixed DMA misalignment when reading mode page 1
- changed #includes for glibc for compatibility with 2.32
- dropped Darwin/Mac OS X support
- removed dependency on installed md5sum command
- changed libpng test in configure to utilize pkg-config
- fixed some minor flaws for NetBSD

0.72 (pl3) 05-10-2011
- Volodymyr Bychkoviak found a problem when verifying 
  RS01 files which are larger than 2GB and provided a bugfix.
- Backported improved Windows locale detection from 0.79 branch.
- made package compile under OS X 10.6; updated OS X toolchain
  to Gtk 2.24.

0.72 (pl-2) 31-10-2010
- changed sources for clean compile on gcc 4.4.3
- Using the CDROM_SEND_PACKET ioctl() will hang parallel
  SCSI adapters. Added tests to determine the SCSI bus type,
  and switch to the SG_IO ioctl() when in doubt.
  Thanks to S. Seidl and R. Manfredi for the respective bug reports.
- fixed recognition of dvdisaster 0.79 RS03-augmented image 
- minor cosmetic changes for regression test compatibility
  with 0.79

0.72 (pl-1) 08-08-2009
- Pablo Almeida provided a Portuguese translation
  for the screen text.
- workaround for freeze on Win XP for certain drive/CD-RW pairs

0.72 04-07-2009
- Igor Gorbounov completed the Russian translation
- fixed lockups in the spiral under Mac OS X
- fixed crash when calling dvdisaster on command line without
  specifying a file name on Mac OS X

0.72 (rc-2)
- fixed lockups in the spiral under Mac OS X
- fixed crash when calling dvdisaster on command line without
  specifying a file name on Mac OS X

0.72 (rc-1) 11-04-2009
- Documentation and locale cleanup for en, de
- added app bundle creation for Mac OS X
- Graphical bug: red/green sector markings were incorrect when doing
  linear reading with high sector skip numbers. Fixed.
  Speed curve will no longer travel below the x axis.
- fixed rare crash while linear reading due to a race condition
  by improper ClearCrcCache() usage.
- fixed bogus dead sector warning in the linear reader 
  after encountering unreadable sectors
- made adaptive reading pursue raw reading more aggressively;
  effectively trading in place re-reads for seeks over
  the medium.
- --help output for --defective-dump was complete nonsense. Fixed.
- detection of read errors at the end of track at once disks
  would sometimes cut off too many sectors when doing multiple
  reading passes and a carefully crafted number of extra read
  errors occurred. Fixed.
- fixed crash in command line mode when doing multiple 
  reading passes.

------ 0.72 released ------

0.71 (devel-28) 08-03-2009
- changed SSE2 handling; now only the interesting part of
  dvdisaster are compiled with -msse2 and selection between
  normal and SSE2 code versions are done at run time.
  (Don't waste your time searching for SSE2 code in 0.7x -
   there is none; but we need the option to configure for it
   in preparation of 0.80)
   Thanks to Karsten H., Nathan S. and Tobias G. for bringing 
   this issue to my attention!
- changed treatment of CRC failures: old behaviour was to 
  store a defective sector marker; now the actual sector
  contents are written to the image file.
- starting a scan/after automatically loading a medium
  would not always work. Fixed.
- command line mode will no longer scan for available 
  devices when one is already given via -d.
  Thanks to Raphael M. for noting this.
- fixed build failure on FreeBSD; updated atapicam loading
  instructions.
- opening the preferences dialog produced a GTK warning. Fixed.
- log window would crash during update or when closed and
  re-opened repeatedly. Fixed the bunch of race conditions
  causing this.
- provided better defaults for the raw sector cache directory
  under Windows.

0.71 (devel-27) 18-01-2009
- Verifying RS02 images would sometimes show slightly incorrect
  numbers of recoverable sectors in the "Prognosis: " line. Fixed.
- showing media info would sometimes go wild when called
  on empty drive. Will now report missing media correctly.
- fixed infinite loop on disk full state
- fixed failure on writing ecc files with now possible larger
  cache settings in command line mode
- increased encoder cache size to 8GB for RS01 and RS02
- some fine-tuning in recover-raw.c; added recognition of
  bad sectors whose data portion is actually good; added
  trivial correction by resetting the sync pattern
- corrected a data flow anomaly and missing parentheses in
  heuristic-lec.c
- Blank capacity of DVD-RAM could not be queried. Fixed.
- Phew. English and German documentation finished.
- fixed crash when using ancient CD-ROM drives.
  Thanks to mschaeff to bringing this to my attention!
- more robust handling for incomplete/unfinalized media; should produce 
  less dreaded "couldn't query [several possiblilities] length" 
  errors now ;-)
- added on-the-fly checkum verification for RS02
- skipped color glitch in the GUI; skipped sectors would not always be marked
  blue in the spiral
- reading media in multiple passes could crash on finish due to a
  race condition on very fast systems; fixed. 
- started support for a new missing sector marker

0.71 (devel-26) 30-03-2008
- Changed media type detection to a (hopefully) even more robust
  approach. Please report if this breaks compatibility with prior
  working drive/media combinations. 
- removed HD DVD support
- added medium info window
- fixed size determination of blank CD media
- added BD sizes to preferences dialog
- more BD tweaking

0.71 (devel-25) 04-03-2008
- replaced treatment of localized file names with a different
  approach; the previous one broke large file support under Windows.
  Thanks to Markus G. for bringing this to my attention!
- fixed failure when trying to re-read incomplete image using split files

0.71 (devel-24) 24-02-2008
- enlarged scsi timeout for Linux as newer Kernels seem
  to freeze on timeout
- fixed filename handling (e.g. German umlaut corruption) under Windows
  (thanks to T.Barth for noting this!)
- fixed thread handling in command line mode so that combining
  several actions in one call work again
- added thumbnail decimation and real argv[] processing to pngpack
- started rework of online documentation for PHP;
  package creation is currently broken
- fixed adaptive reading crash when invoked with partial image
  and no ecc data (thanks to Jörg and Wolfgang for noting this!)
- fixed log file creation inconsistency (thanks to mschaeff!)
- started with raw sector editor
- added --with-embedded-src-path as proposed by Klaus Heinz
- relaxed MSF test for incoming sectors so that read errors
  within the MSF can be corrected
- phased in new documentation
- cleaned up CVS for new documentation

0.71 (devel-23) 06-05-2007
- started C2 scanning support for CD media
- added Bernd Hellers umount patch for MacOS
- Andrei did it again and provided improved RAW recovery heuristics :-)
- fixed expose event loop within preferences
- fixed widget mutator race conditions within preferences

0.71 (devel-22) 22-04-2007
- added Russian translation from Igor Gorbounov
- added more mode page / raw reading selections:
  20h and 21h and internal drive retries are selectable
- fixed raw sector caching when read attempts = 1
- fixed unnecessary ecc attempts when no new raw sectors were read
- suppressed addition of sectors with same contents to raw sector cache
- fixed non-working raw sector cache dir selection under Windows

0.71 (devel-21) 09-04-2007
- added larger cluster size for BD and HD DVD

0.71 (devel-20) 08-04-2007
- started HD DVD and BD support
- fixed scale steps for HD DVD and BD (thanks to Andrei for 
  noting this :-)
- completing the alpha testing documentation

0.71 (devel-19) 25-03-2007
- fixed missing CRC sum test in adaptive reading for RS02
  (thanks to Marcus J. for pointing this out!)
- updated english and german manualpages
- added verbose logging and log file saving in the GUI

0.71 (devel-18) 18-03-2007
- fixed read linear thread handling in CLI mode
- closed more memory leaks
- added selection for both SPTI and ASPI drives
  in the GUI under Windows
- fixed color glitches in the spiral during linear reading

0.71 (devel-17) 04-03-2007
- fixed read linear reading crash in CLI mode
- fixed UDF parser, raw reading on big endian archs
- fixed broken Windows build, upgraded to InnoSetup 5.1.11,
  personalized setup graphics. Thanks to Lubos Stanek for the
  artwork ideas.
- fixed crash in HeuristicLEC/DecodePQ

0.71 (devel-16) 25-02-2007
- added Solaris port; this is for testing only and will not
  be officially supported.
- corrected output of --version
- added version information to the documentation headline
- fixed user break detection during sector re-reading
- improved resize behaviour of preferences online help

0.71 (devel-15) 21-02-2007
- added NetBSD port (thanks to Sergey Svishchev!)
- added test for regular files on LargeOpen();
  thanks to Alex S. for noting this issue!

0.71 (devel-14) 18-02-2007
- added defective sector caching
- added multiple reading passes

0.71 (devel-13)20-01-2007
- Fixed crash when using command line mode with --query-size=ecc and
  rewriteable DVD without RS02 ecc data. Thanks to Vincent L. for 
  reporting this!
- Fixed crash caused by drives reporting unreasonable media sizes.
  Thanks to Rafal K. and Klaus-Maria P. for reporting this!
- added ADIP extraction for better medium type determination

0.71 (devel-12) 07-01-2007
- Fixed a DEAD SERIOUS race condition in the linear reader while
  completing existing images (0.71 devel-9 to devel-11 are affected).
- Changelog had 0.71 misrepresented as 0.72. Fixed.
- Linear reading wrote some dead sector markers twice. That did not hurt,
  but was unnecessary. Fixed.
- Earlier versions of 0.71 had linear reading count unreable sectors also
  as CRC failures. Fixed.
- Adaptive reading: Fixed garbled contents of "size mismatch" dialog;
  move fingerprint check before size check 
- When limiting the reading range for adaptive reading sector 0 would
  not be marked as missing. Fixed.
- added multiple media read entry in the preferences,
  but it is not functional yet.

0.71 (devel-11) 01-01-2007  Happy new year :-)
- more segfault hunting on the raw reader
- Added dialog for skipping RS02 detection of DVD RW
- Added appearance preferences (thanks to Christian N. for explaining
  the need for this!)
- Preferences restructuring completed; Help texts need more work, though
- Added automatic media ejection after successful read
- Added automatic media loading when Read/Scan is attempted while
  the drive tray is left open

0.71 (devel-10) 26-11-2006
- more fine tuning of the raw reader
- removed preferences and command line sections from documentation
- removed NSIS support

0.71 (devel-9) 19-11-2006
- added multi threading to the linear reader
- Fixed program hanging on CD-Audio/Multisession media.
  They are unsupported, but we must not crash on them.
  Thanks to Robert Hruby for reporting this problem!

0.71 (devel-8) 12-11-2006
- added support for CD XA21 sectors in raw reading and frame recovery
- added automatic word wrapping to preferences help system

0.71 (devel-7) 01-11-2006
- renamed Level2_L_EC; "unrolled" store_[p|q]_conditional
- completed migration of "General" preferences documentation from HTML docs into
  preferences GUI

0.71 (devel-6) 29-10-2006
- completed migration of "Read and Scan" preferences documentation from 
  HTML docs into preferences GUI
- re-inserted heuristical L-EC from Andrei Grecu

0.71 (devel-5) 22-10-2006
- more fine-tuning on the plain RAW reading capabilities
- removed some rarely used error messages from localization
  to relieve the translators

0.71 (devel-4) 17-10-2006
- rearranged raw reading and number of reading attempts

0.71 (devel-3) 01-10-2006
- added recognition of wrong sectors (e.g. the respective sector was not
  requested)

0.71 (devel-2)
- added experimental l-ec to raw reading algorithm. Won't work reliably yet.

0.71 (devel-1)
- added CD raw reading and majority algorithm
- started transfer of preferences documentation from HTML manual
  to new online help system

0.70 (pl6) 04-03-2008
- rolled back the Windows filename encoding fixes;
  they caused large file support to be broken
  Thanks to Markus G. for bringing this to my attention!

0.70 (pl5) 24-02-2008 various backports from 0.71.24:
- enlarged scsi timeout for Linux as newer Kernels seem
  to freeze on timeout
- Windows filename encoding fixes

0.70 (pl4) 20-01-2007
- Adaptive reading: Fixed garbled contents of "size mismatch" dialog;
  move fingerprint check before size check 
- When limiting the reading range for adaptive reading sector 0 would
  not be marked as missing. Fixed.
- Fixed crash when using command line mode with --query-size=ecc and
  rewriteable DVD without RS02 ecc data. Thanks to Vincent L. for 
  reporting this!
- Fixed crash caused by drives reporting unreasonable media sizes.
  Thanks to Rafal K. and Klaus-Maria P. for reporting this!
- added ADIP extraction for better medium type determination

0.70 (pl3) 10-12-2006
- Fixed program hanging on CD-Audio/Multisession media.
  They are unsupported, but we must not crash on them.
  Thanks to Robert Hruby for reporting this problem!
- Added dialog for skipping RS02 detection of DVD RW

0.70 (pl2) 03-10-2006
- fixed crash by inappropriate g_free() on Pango layout (thanks to Dmitry
  for pointing this out)
- fixed pngpack decoding failure on big endian machines (thanks again to
  Dmitry)
- fixed type mismatch compiler warning on 64bit archs

0.70 (pl-1) 30-07-2006
- fixed a bug in read-adaptive for RS02 which would sometimes prevent it 
  from properly restarting a previously interrupted reading session.
- fixed a bug in read-adaptive for RS02 which would cause it to read 
  insufficient data for error correction in some circumstances.
- clarified higher redundancy requirements for RS02 in
  background30.html (thanks to M. Buchholtz for pointing this out)
- made Windows console and GUI versions refuse being run in the wrong mode
  (thanks to xaros2000 for noting this inconsistency)
- wrong values and units fixed in the error message for creating RS02
  images with too small medium size.
- -n/--redundancy will accept CD,DVD,DVD9 for the default medium sizes
  (thanks to mschaeff for suggesting this)
- added output of required sectors to adaptive reading GUI 
- changed --random-image to create a valid ISO image
- added --marked-image debugging option

------ 0.70 released ------

0.70 09-07-2006
- cleaned up source distribution
- some more touch-ups on the manual pages
- fixed a bug reading the CD TOC which would cause
  temporary hangs in Windows XP for certain combinations
  of faulty drive firmware, CD-RW and SPTI.

0.70 (rc-1) 08-07-2006
- fixed the adaptive reading bug
- updated German and English manual pages

0.67 (devel-19) 02-07-2006
- completed German and English manual
- image and error correction file entries can be empty
- there is a yet unidentified bug in conjunction with
  adaptive reading and RS02 fixing left

0.67 (devel-18) 25-06-2006
- started putting the NSIS scripts into place (not yet finished)
- adaptive reader left correctable sectors zero-filled in the image under
  some circumstances; these showed up as CRC errors during verify and fix.
  these are now correctly filled with the dead sector marker and therefore
  reported as missing.
- fixed crash when doing RS01 encode right after RS02 encode on same image
- added simple-md5sum as FreeBSD does not have md5sum by default,
  but we need it during the build process.
- fixed non-working online manual button under FreeBSD and Darwin

0.67 (devel-17) 18-06-2006
- added Swedish locale from Daniel Nylander
- fixed utf8 strlen problem in console output
- fixed missing output of last sector status during
  read and verify operations (only GUI output was affected;
  sectors were properly read) 

0.67 (devel-16) 15-06-2006
- removed race conditions in some GUI idle functions

0.67 (devel-15) 11-06-2006
- fixed CreateBitmap() namespace collision under Windows
- fixed md5sum miscompare on source code check under Windows
- made RS02 image detection more robust for dealing with
  rewriteable media

0.67 (devel-14) 10-06-2006
- completed german localization
- fixed "fuzzy line" redraw bug in reading speed curve

0.67 (devel-13) 04-06-2006
- some more fine tuning of adaptive reading for RS02
- remove some debugging output from locale and path search
- optimized image type detection for RS02 media
- added wininst directory for NSIS installer related files

0.67 (devel-12) 28-05-2006
- Major rewrite of adaptive reading strategy.
  RS02 images are now handled correctly so that reading
  stops when enough data for error correction has been
  gathered. 

0.67 (devel-11) 27-05-2006
- added defect medium simulation via --sim-defects n command line
  option

0.67 (devel-10) 25-05-2006
- removed drive database
- Windows online manual crash fixed (thanks to Rob B.for helping
  to track this down!)
- online manual debugging code removed
- version.h replaced with bbc variable
- added changes to GNUMakefile.template from Lubos

0.67 (devel-9) 15-05-2006
- replaced --parse-udf and --parse-ecc with --query-size

0.67 (devel-8) 14-05-2006
- added log file option to debug the online manual crashes
- again some fixes in the Windows initialization

0.67 (devel-7) 14-05-2006
- reviewed and fixed Windows path initalization codes
  (thanks to Lubos!)

0.67 (devel-6) 30-04-2006
- .dvdisaster and .iso/.ecc files are placed in user writeable places
  under Windows if possible

0.67 (devel-5) 23-04-2006
- Julian Einwag started working on the Mac OS X / Darwin SCSI layer.
  Thanks :-)
- fixed RS02 for big endian architectures

0.67 (devel-4) 17-04-2006
- completed graphical fix action for RS02. 
  RS02 is now fully integrated with the GUI.

0.67 (devel-3) 15-04-2006
- completed graphical compare action for RS02
- removed wording inconsistencies (footprint->fingerprint;
  trimming->truncating) as noted by Daniel N.

0.67 (devel-2) 09-04-2006
- added named mutex as proposed by Lubos
- I felt silly so I changed the empty welcome window to actually
  display a welcome message ;-)

0.67 (devel-1) 02-04-2006
- added preferences settings for RS02
- linked RS02 image creation with graphical user interface
- suppressed error message when adjusting reading range without medium in drive

0.66 (pl-2) 28-03-2006
- added .xpm icons in contrib

0.66 (pl-1) 27-03-2006
- fixed broken makefile when configured with --buildroot
  (thanks to Lubos!)

------ 0.66 released ------

0.66  25-03-2006
- last RS02 headers were omitted when they would end up in the last
  two image sectors. fixed.
- updated installation scripts for new documentation structure
- fixed writing of superflous bytes when repairing non-image files
  in RS01
- fixed garbling of error correction data when processing
  non-image files with RS02
- fixed handling of truncated images in RS02
- fixed incorrect erasure count in RS02 decoder
- fixed false CRC errors for unreadable CRC sectors in RS02 decoder

0.66 (rc-7) 12-03-2006
- added homepage generation for SourceForge
- final rework of background20 in the documentation
- added --parse-ecc option
- added documentation for --parse-ecc: example90, example10, example30,
  example81, prefs-general.png, prefs-general1.png
- moved localized screenshots from images to lang/images
- added media checksum test for ecc header search

0.66 (rc-6) 04-03-2006
- fixed image size miscalculation in RS02Common
- fixed layout miscalculation for certain border cases in RS02Common
- debug.c: added random removal of ecc headers;
  fixed range check in erasure calculation
- added media size recognition from RS02 headers in query_size()
  this will need some more thought.

0.66 (rc-5) 03-03-2006
- changed ShellExecute() call which might have caused the 
  mysterious Help system crashes on Windows (I was never able
  to reproduce them)
- adapted --random-errors for ecc images
- fixed miscalculation of ecc header count for certain
  image lenghts in RS02
- fixed misreported CRC errors in RS02Compare when read errors
  are present in the CRC section
- dropped / rephrased "error correction images" in documentation
- reworked German part of background20, this is still work in progress

0.66 (rc-4) 26-02-2006
- fixed documentation path in manuals
- added summary messages after RS02 repair
- added correct handling of truncated images in fix, compare
- added correct handling of images with trailing garbage
  in fix, compare
- fixed commandline crash in RS01 when image was 1 or 2 sectors
  too large
- added FAQ item 3.7 to documentation
- fixed spurious <td></td> in example40cs table
 
0.66 (rc-3) 25-02-2006
- cleanup of the documentation HTML code (thanks to Lubos)
  . cleaned up misplaced </tr></td> tags
  . added missing alt="" within <img>
  . fixed several links
  . removed spurius <b> from command line argument tables
  . added missing </td></tr> to command line examples
  . fixed <u> tags
  . remove full stop from head lines

0.66 (rc-2) 21-02-2006
- released brake on RS02 encoding (improved HDD writing pattern)

0.66 (rc-1) 19-02-2006
- command line version of RS02 codec 
- joined examples and command line section of manual

0.65 (devel-4) 12-02-2006
- renamed .img files to .iso files to facilitate easier
  interoperability between RS02 ecc images and burning software

0.65 (devel-3) 11-02-2006
- Creation of image and ecc files can be resumed after going
  out of disc space (only in GUI mode)
- updated README
- created contrib directory; added desktop and rpm skeletons
  contributed by Lubos Stanek
- changed length query for SCSI opcode 0xad 
- changed length calculation for SCSI opcode 0x43
- enabled CRC testing when "Delete image file?" is answered
  positively

0.65 (devel-2) 29-01-2006
- added CRC testing during linear read and scan options
  (if the respective ecc file is present)
- added flags for marking development versions and release candidates
  in the ecc file versiom information
- removed some memory leaks in the windows version

0.65 (devel-1) 22-01-2006
- fixed several places in Makefile to handle source tree from CVS properly
- reorganized documentation scripts to better separate HTML markup
  from translated phrases (dictionary_xx functions)
- removed language selection from online manual
- separated documentation image archives by language
- fixed crash when documentation was not properly installed
- added --buildroot option to configure
  (thanks to D. Baumann and V. Kuhlmann for explaining the need for this!)

------ 0.65 released ------

0.65: 14-01-2006
- Czech translation by Lubos Stanek
- made invocation of external HTML viewer more flexible and robust
- started support for big endian archs (NOT completed yet!)
- modularized scsi and codec interface for easier future expansion
- made --random-errors use the internal random number generator
  and allow for independent selection of number of roots/erasures
- Error correction files can be larger than 2GB on FAT file systems
- changed medium fingerprint sector from 257 to 16 (ISO file system root block)
- Windows binaries are now shipped with Gtk+2.6 libraries
- CRC information is calculated and cached when reading the image
  so that we do not need to re-read the image in a subsequent create operation.
- tinkered with speed curve algorithm to get smoother lines
- made sector color markers during linear read more understandable (hopefully)
- configure will now correctly honor $LDFLAGS from the user environment
- added Gtk+ library localization files to Windows distribution
  (thanks to J. Meyer for reporting this problem!)
- fixed bug in the Errors/Ecc block graph which would make it scale incorrectly
  if uncorrectable errors are encountered (this was just a rendering problem
  with no influence on the actual error correction)
- added gdk pixbuf check to configure (thanks to W. Wershofen for noting this!)
- better error diagnosis for invalid ecc files (thanks to Lubos for noting this!)
- modified code to compile cleanly under gcc 4.02

0.64.2: 01-11-2005
- fixed crash when using -u in command line mode
- changed packaging system to allow different package and version numbering systems
  Current naming scheme is:
  . package name = package directory    = 0.xx[.y]
  . version name (as advertised in GUI) = 0.xx[ (pl y)]
- fixed img file permissions for Linux version
- drive selection wasn't remembered between sessions under
  Gtk+-2.4 and higher: fixed
- Manual/Homepage fixed for some MSIE glitches

0.64.1: 23-10-2005
- fixed bug which activated automatic ecc file generation in scan mode
- fixed crash at startup when linked against Gtk+ 2.6
  (Thanks to Radu M. and Richard B. for noting this!)

0.64: 18-10-2005
- reworked console and logging output:
  Got rid of \b usage in locale files, 
  making gawk filtering of diagnostic warning obsolete.
  More removal of read and CRC error reporting in GUI mode as buffering 
  them may result in going out of memory in worst case situations.
  Use the program in command line mode and apply file 
  redirection if you still wish to see these messages.
- fixed a glitch in the linear read/scanning GUI 
  which prevented small unreadable areas to stay 
  marked red in the spiral 
- fixed bug which did not install the CREDITS.* files
- fixed configure to use the --prefix settings properly 
  (thanks to Daniel Baumann for pointing this out)
- added de/en/it man pages supplied by Daniel Baumann
- fixed non-working --spinup-delay command line arg
- added configurable --docsubdir at request of Daniel
- Changed linear reading strategy
  . Sector skipping after a read error is now done in all passes, 
    not just the first one (the previous behaviour turned out as 
    an arbitrary design decision which did not really make sense)
  . Re-reading passes are carried out in 16 sector chunks, too
- provided workaround for detecting CD media on Teac slimline
  drives (and possibly others) caused by silly firmware answers
- provided workaround for read errors which are reported
  as something else by sloppy firmware
- added debugging functions --random-image and --random-seed for creating
  images with "random" numbers. Images created with --random-seed n are
  bitwise mirrors of those created with --random-seed -n.
- hunted down some memory leaks
- turned warning dialogs into modal dialogs
- fixed some minor redraw flaws in adaptive read mode
- fixed automatic file removal bug when in FAT32 mode 
  (thanks to Peter H., Walter G and Stephan J. for noting this)
- fixed error handling in GUI mode: in some rare error situations,
  it would not bring up the intended error dialog, but either
  continue quietly or terminate the whole program.
- fixed empty drive pop down menu after changing drives in the system
  or sharing a dvdisaster installation between different Windows installations
- started support for parsing ISO file system structures
- added some recent drives to the drive data base
- rewrote the drive spinup code
- added function for automatically creating the .ecc file after
  successfully reading an image
- documentation partially rewritten
- added some code to make sure that the "read adaptive" spiral fits into the window
- removed flicker in the "read adaptive" mode text output 

0.63: 01-08-2005
- added adaptive read strategy (thanks to Harald Bögeholz
  for the suggestion; see also the CREDITS file)
- added --fill-unreadble option for better compatibility with
  other tools (e.g. h2cdimage from c't magazine)
- cut down information written to the log window in GUI mode 
  as that could use up significant amounts of memory in worst 
  case scenarios. Use command line mode if you are still interested
  in these messages.
- fixed code for clean compile with gcc 4.0.1
- added auto-suffix option for automatically adding .img/.ecc to files
  given without an extension (thanks to Marcus for the suggestion!)
- changed function test prototype in bash based configure from
  char* to char to work around misdetection of gcc's builtin gettext()
  (thanks to Heinz R. for pointing this out)
- fixed crash in About requester when LANG environment was not set
  (thanks to Andreas for the patch!) 

0.62: 03-07-2005
- added correct return codes to indicate whether reading
  succeeded or found bad sectors in command line mode
- added experimental support for splitting image files into 2GB chunks
  (mainly for use with VFAT an Win9x; avoid this mode if you can)
- added compare function to graphical user interface
- fixed 'make install' (thanks to Andreas for noting the problems)
- fixed german umlaut glitch in the foot line (thanks to GoldenFingaz
  for pointing this out)
- relaxed handling of image size mismatches

0.61: 24-04-2005
- added preferences dialog
- decoupled command line settings from GUI settings so that
  command line arguments will not be remembered across sessions
  and GUI settings will not be used in command line mode.
- more image size detection fine tuning (this becomes a running gag, huh?)
- added --speed-warning option (thanks to Richard B. for the suggestion!)
- added --spinup-delay option
- removed startup-related downspike in the speed graph

0.60: 09-04-2005
- first release with graphical user interface
- tinkered again with image size detection
- added debugging function for zeroing out the "unreadable sector"
  markers (thanks to Marcus J. for the suggestion!)
- made configure more compatible with autoconf behaviour 
  (thanks to Andreas for pointing out the differences!)

0.55: 20-02-2005
- added Italian translation from Andrea Polverini (polve@polve.com)
- improved media type detection
- upward compatibility with the improved media footprint calculation
  from upcoming version 0.60

0.54: 01-01-2005
- Switched from Cygwin/cygwin1.dll to Mingw/msvcrt.dll,
  with some additional functionality taken over by glib2.
  This may cause some short-time inconvenience (please report
  all different behaviour relative to 0.53.1!),
  but will pay off in later versions. 
- Some code reorganization.
- Shortened the version number scheme to major.minor
- Removed visualization via gnuplot. Visualization will be
  re-introduced in version 0.60; please use version 0.53.1
  for visualization if needed.
- Reworked compilation instructions in documentation.

0.53.1: 27-12-2004
- encrypted discs will be rejected before any actual reading
  is attempted (avoids confusing error messages when running into
  the encrypted area).

0.53.0: 23-12-2004
- introduction of GNU gettext
- German localization
- Makefile will automatically collect .c files
- Preparation for multiple codecs
- fixed incorrect media size calculation for +RW images
- fixed installation procedure (thanks to Kay D. !)

0.52.1: 04-12-2004
- Fixed the handling of truncated image files (thanks to Harald B.!)
- Better diagnosis of images which are longer than supposed
  (should never happen, but one never knows)

0.52.0: 28-11-2004
- codec speedups and user selectable redundancy settings

0.51.1: 13-11-2004
- fixed bug which prevented dvdisaster from working
  under Windows XP without Cygwin being installed
  (thanks to Andrea and Harald B. for reporting this!)
- removed unnecessary open with write permission 
  within --test action
- Besides bringing scanning speed to a screeching halt on
  slow systems, calculation of the image md5sum during
  the --scan option wasn't very useful -- removed it.
- repaired a glitch which would derail the codec when
  fixing a truncated image
- added --dao option
- added a test predicting a TAO medium when fixing a
  damaged image

0.51.0: 06-11-2004
- added experimental ASPI support for Cygwin version
- added alternative "-end" syntax for specifying the sector range
- added -j/--jump option
- fixed minor bug which made -t option fail reading the CRC data
  on very small media images

0.50.0: 01-10-2004
- Experimental Cygwin support.
- Rewrote SCSI layer for portability.
- Introduced ./configure mechanism.
- Dropped --direct option for portability reasons.
- Changed behaviour of continuing the reading of incomplete images;
  if the image size is smaller than the medium size, reading will
  now continue at the last read sector. Previous versions would have
  tried all unread sectors before.
- Fixed a bug which would not fill in the missing sector markers
  on a sequence of non overlapping read intervals (such as doing
  -r0-100000; -r110000-media_end; the range 100001-109999 would
  have been simply zeroed out in previous versions).

0.42.2: 23-09-2004
- changed the --fix semantics so that sectors with wrong CRC sums 
  will automatically be fixed (previous versions would just report
  them as bad when using the -t option)
- made --fix more verbose about CRC errors

0.42.1: 11-09-2004
- unrolled the inner codec loop; optimized some C expressions within
- code cleanup in the encoder

0.42.0: 08-09-2004 (no public release)
- changed the caching and code generation strategy in the RS encoder
- added program version information in the ecc file header
- updated the --print option to show the new header information
- made --fix option reject .ecc files from future program versions

0.41.2: 05-09-2004
- some speed optimizations in the encoder
- the --direct option now actually works 
- removed the #ifdef DEBUG clutter in ecc-rs01.c
- added the --byteset debugging function

NOTE: Debugging functions are intentionally undocumented and unsupported.

0.41.1: 31-08-2004
- added CRC32 checksum for each image block in the .ecc file

0.41.0: 28-08-2004 (no public release)
- Replaced the matrix-based codec with one using polynomials.

0.40.8: 24-08-2004 (no public release)
- removed unused div_tab[] from ecc-rs01.c (which was incorrectly initialized anyways)
- fixed md5sum miscompare in print.c
- added the --random-errors debugging function

NOTE: Debugging functions are intentionally undocumented and unsupported.

0.40.7:22-08-2004
First public release