Xorriso.md

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+xorriso is a command line and dialog application, which creates, loads,
+manipulates and writes ISO 9660 filesystem images with Rock Ridge extensions.
+It is part of the  [libisoburn](Libisoburn) release tarball.
+
+It copies file objects from POSIX compliant
+filesystems into Rock Ridge enhanced ISO 9660 filesystems and performs
+session-wise manipulation of such filesystems. It can load the management
+information of existing ISO images and it writes the session results to
+optical media or to filesystem objects. If linked with `zlib` then it is able
+to produce the [zisofs compression format](zisofs). Directory tree,
+whole session, and single data files may be equipped with MD5 checksums.
+
+Vice versa xorriso is able to copy file objects from ISO 9660 filesystems
+to the disk filesystem. At that occasion it can restore ACLs and user xattr
+which it may have recorded when creating the filesystem.
+It can also decode `zisofs`
+compression. MD5 checksums may be used to detect any data corruption.
+To avoid unpleasant user surprises, the ISO-to-disk feature has first to be
+enabled by option -osirrox.
+
+By its `-as mkisofs` emulation, xorriso is serving several GNU/Linux
+distributions for the production of bootable ISO images, which not only
+boot from CD, DVD, and BD, but also from disk-like devices like USB pen drives.
+For an overview of known and supported boot sectors see
+[page about command -report_system_area](Reportsystemarea).
+
+A special property of xorriso is that it needs neither an external ISO 9660
+formatter program nor an external burn program for CD, DVD, or BD but rather
+uses the libraries of libburnia-project.org . Especially it is
+related to [libisoburn](Libisoburn) which hosts source and object code
+of xorriso. The dynamically linked binary of xorriso is therefore very lean.
+
+All xorriso features may be used by other programs via a C language API
+[libisoburn/xorriso.h](https://dev.lovelyhq.com/libburnia/libisoburn/raw/HEAD/xorriso/xorriso.h).
+
+Another approach for frontends via a pair of pipes and xorriso dialog mode
+is demonstrated by
+[xorriso-tcltk](https://dev.lovelyhq.com/libburnia/libisoburn/raw/HEAD/frontend/README-tcltk)
+See this [screenshot of xorriso-tcltk](http://www.gnu.org/software/xorriso/xorriso-tcltk-screen.gif).
+
+-----------------
+
+Have a look at the
+[GNU xorriso home page](http://www.gnu.org/software/xorriso/xorriso_eng.html)
+which gives some examples of xorriso usage,
+its [man page](http://www.gnu.org/software/xorriso/man_1_xorriso.html),
+and its
+[installation instructions](http://www.gnu.org/software/xorriso/README_xorriso).
+
+-----------------
+
+GNU xorriso is feature-wise equivalent to the dynamic compilation of
+libburnia libraries and libburnia program xorriso.
+It restricts itself to a technical form where the legal commitments of the
+libburnia project and the legal intentions of [FSF](http://www.fsf.org/)
+match completely.
+
+Libburnia project is committed to provide support for this copy in the same
+way as for its own software releases. It is further committed to keep its
+own licenses open for obtaining future copies under GPLv2+.