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This directory tree contains dvdisaster, # dvdisaster provides additional ECC protection for optical media
a tool providing additional ECC protection for optical media.
It can loosely be compared to *par2* files, but the protection works at the *iso* level instead of working at the file level. This way, even if metadata from the optical media filesystem is damaged, dvdisaster can still work flawlessly.
This version of dvdisaster supports the following platforms: This version of dvdisaster supports the following platforms:
Linux, FreeBSD, NetBSD on x86, PowerPC, and Sparc. Linux, FreeBSD, NetBSD on x86, PowerPC, Sparc, and Windows.
Three protection codecs are supported, they're quickly detailed below. Please see the documentation/manual.pdf for more information about these, and everything else.
Roadmap of contained files # The codecs
--------------------------
INSTALL ## RS01
See the file INSTALL on bringing up dvdisaster.
README.CVS RS01 creates error correction files which are stored separately from the image they
If you got this archive from CVS, make sure to read README.CVS also. belong to. The artefact is an **ecc** file, which must be stored on another media than the one we're protecting.
README.MODIFYING ## RS02
Please read these notes carefully if you plan to modify dvdisaster.
COPYING RS02 creates error correction data which is added to the medium to protect, we call this *augmenting* the image we're protecting. Damaged sectors in the error correction information reduce the data recovering capacity, but do not make recovery impossible - a second medium for keeping or protecting the error correction
This software is distributed under the GNU General Public License, information is not required.
which is contained in the file COPYING.
CHANGELOG ## RS03
See CHANGELOG for a description of recent changes in this software.
CREDITS.* RS03 is a further development of RS01 and RS02. It can create both error correction files and
Even a relatively small project like dvdisaster could not come to life augmented images, with the following added features:
without the help of other people. See the files CREDITS.* for details.
TODO - RS03 can distribute work over multiple processor cores and is therefore much faster than
Some open tasks and notes about future work are contained in TODO. RS01/RS02 on modern hardware.
- RS03 error correction files are - contrary to RS01 - robust against damage. This should
not delude you into careless handling of your error correction files though - the disadvan-
tages of reading at the filesystem level are still valid.
- RS03 augmented images do not require so-called master blocks holding important in-
formation. This makes RS03 a bit more robust, but also more restrictive: The augmented
image must completely fill the medium now while the size of augmented images can be
freely chosen in RS02.
The changes for parallel computation and higher robustness make RS03 a bit less space efficient,
e.g. RS03 error correction data has slighly less error correction capacity than its RS01/RS02
counterparts on images with equal size.
TRANSLATION.HOWTO # Unofficial version
See TRANSLATION.HOWTO if you want to help translating dvdisaster
into your native language.
md5.* The last upstream version is dated 2017, and the official website is down.
The md5.* files come from the 2.4.20 Linux kernel distribution and The original README has been left untouched in this repository.
have been adapted to the needed functionality for this project. This version is built on top of the latest upstream version, with the following notable enhancements:
See the notes in md5.c for more information.
There are other files contained in the top-level directory whose - Most Debian patches have been applied (The Debian version source code can be found [here](https://sources.debian.org/src/dvdisaster/))
use is limited to the build process. - Windows build added back (was dropped upstream a few versions before the last one)
- A Linux CLI-only version can now be compiled, without depending on gtk
- Regression tests confirmed working on Linux64 (normal and CLI-only), Windows32 and Windows64
- Added pre-defined sizes for BD-R Triple Layer (100GB), BD-R Quadruple Layer (128GB)
# Screenshots
Roadmap of contained subdirectories (todo)
-----------------------------------
contrib
A few skeleton files for desktop integration and package maintenance
are contained in the directory "contrib".
documentation
The directory "documentation" contains a copy of the project
home page, which doubles as user manual and project documentation.
icons
Icons used in the graphical interface are located in the respective
directory.
locale
Translations of the programs on-screen texts are in "locale".
scripts
Scripts needed for configuring and building dvdisaster are
located in the "scripts" directory.