rockbox/manual/appendix/appendix.tex

\appendix
\chapter{The appendix}
\section{Feature comparison chart}
\begin{tabular}[c]{|p{10.382cm}|p{2.799cm}|p{2.411cm}|}
\hline
{\centering\bfseries\itshape
FEATURE
\par}
&
{\centering\bfseries\itshape
ROCKBOX
\par}
&
{\centering\bfseries\itshape
ARCHOS
\par}
\\\hline
\endhead
ID3v1 and ID3v2 support 
&
Yes 
&
ID3v1 
\\\hline
Background noise during playback 
&
No 
&
Yes 
\\\hline
Mid{}-track resume 
&
Yes 
&
No 
\\\hline
Mid{}-playlist resume 
&
Yes 
&
No 
\\\hline
Resumed playlist order 
&
Yes 
&
No 
\\\hline
Battery lifetime 
&
Longer 
&
Long 
\\\hline
Battery time indicator 
&
Yes 
&
No 
\\\hline
Customizable font (Recorder) 
&
Yes 
&
No 
\\\hline
Customizable screen info when playing songs 
&
Yes 
&
No 
\\\hline
USB attach/detach without reboot 
&
Yes 
&
No 
\\\hline
Can load another firmware without rebooting 
&
Yes 
&
No 
\\\hline
Playlist load speed, songs/sec 
&
3000 {}- 4000 
&
15 {}- 20 
\\\hline
Max number of songs in a playlist 
&
20 000 
&
999 
\\\hline
Supports bad path prefixes in playlists 
&
Yes 
&
Yes 
\\\hline
Open source/development process 
&
Yes 
&
No 
\\\hline
Corrects reported bugs 
&
Yes 
&
No 
\\\hline
Automatic Volume Control (Recorder) 
&
Yes 
&
No 
\\\hline
Pitch control (Recorder) 
&
Yes 
&
No 
\\\hline
Text File Reader 
&
Yes 
&
Yes 
\\\hline
Games (Recorder) 
&
8 
&
No 
\\\hline
Games (Player) 
&
2 
&
No 
\\\hline
File Delete \& Rename 
&
Yes 
&
Yes 
\\\hline
Playlist Building 
&
Yes 
&
Yes 
\\\hline
Recording (Recorder) 
&
Yes 
&
Yes 
\\\hline
Generates XING VBR header when recording 
&
Yes 
&
Yes 
\\\hline
High Resolution Volume Control 
&
Yes 
&
No 
\\\hline
Deep discharge option (Recorder) 
&
Yes 
&
No 
\\\hline
Customizable backlight timeout 
&
Yes 
&
Yes 
\\\hline
Backlight{}-on when charging option 
&
Yes 
&
No 
\\\hline
Queue function 
&
Yes 
&
Yes 
\\\hline
Supports the XING header 
&
Yes 
&
Yes 
\\\hline
Supports the VBRI header 
&
Partly 
&
Yes 
\\\hline
Max number of files in a directory
&
10 000 
&
999 
\\\hline
Adjustable scroll speed 
&
Yes 
&
No 
\\\hline
Screensaver style demos (Recorder) 
&
Yes 
&
No 
\\\hline
Variable step / accelerating ffwd and rwd 
&
Yes 
&
No 
\\\hline
Visual Progress Bar 
&
Yes 
&
No 
\\\hline
Select/Load configurations
&
Yes 
&
No 
\\\hline
Sleep timer 
&
Yes 
&
No 
\\\hline
Easy User Interface 
&
Yes 
&
No 
\\\hline
Remote Control Controllable 
&
Yes 
&
Yes 
\\\hline
ISO8859{}-1 font support (Player) 
&
Yes 
&
No 
\\\hline
Queue songs to play next 
&
Yes 
&
Yes 
\\\hline
Bookmark positions in songs 
&
Yes 
&
No 
\\\hline
Number of available languages 
&
24 
&
3 
\\\hline
Accurate VBR bitrate display 
&
Yes 
&
No 
\\\hline
FM Tuner support (FM Recorder) 
&
Yes 
&
Yes 
\\\hline
FF/FR with sound 
&
No 
&
Yes 
\\\hline
Pre{}-Recording (Recorders) 
&
Yes 
&
Yes 
\\\hline
Video Playback with sound (Recorders) 
&
Yes 
&
No 
\\\hline
Boot Time from Flash (in seconds) 
&
4 
&
12 
\\\hline
Speaking Menus Support 
&
Yes 
&
No 
\\\hline
\end{tabular}

\section{Supported file formats}
\begin{center}\begin{tabular}{|p{0.46100003cm}|p{3.296cm}|p{12.339cm}|}
\hline
&
{\centering\bfseries\itshape
FILE TYPE
\par}
&
{\centering\bfseries\itshape
ACTION
\par}
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.37cm,height=0.423cm]{images/rockbox-manual-img80.png}
 
&
Directory
&
The browser enters that directory
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.45cm,height=0.385cm]{images/rockbox-manual-img81.png}
 
&
.mp3
&
Rockbox takes you to the WPS and starts playing the file
\\\hline
 [Warning: Image ignored]
% Unhandled or unsupported graphics:
%\includegraphics[width=0.019cm,height=0.041cm]{images/rockbox-manual-img82.jpg}
 [Warning: Image ignored]
% Unhandled or unsupported graphics:
%\includegraphics[width=0.397cm,height=0.45cm]{images/rockbox-manual-img83.png}
 
&
.m3u
&
Rockbox loads the playlist and starts playing the first file
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.448cm,height=0.51cm]{images/rockbox-manual-img84.png}
 
&
.ajz/ .mod
&
ROLO will load the new firmware
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.467cm,height=0.513cm]{images/rockbox-manual-img85.png}
 
&
.wps
&
The new WPS display configuration will be loaded
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.439cm,height=0.437cm]{images/rockbox-manual-img86.png}
 
&
.lng
&
That language will replace current one
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.439cm,height=0.483cm]{images/rockbox-manual-img87.png}
 
&
.txt
&
This will display the text file using Rockbox text browser plugin
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.445cm,height=0.487cm]{images/rockbox-manual-img88.png}
 
&
.cfg
&
The settings file will be loaded
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.492cm,height=0.513cm]{images/rockbox-manual-img89.png}
 
&
.fnt
&
This font will replace the current one (Recorder only)
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.413cm,height=0.45cm]{images/rockbox-manual-img90.png}
 
&
.rock
&
Starts a Rockbox plugin
\\\hline
  [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.413cm,height=0.439cm]{images/rockbox-manual-img91.png}
 
&
.ucl
&
This Rockbox image will be flashed into the ROM
\\\hline

\begin{center}
 [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.318cm,height=0.423cm]{images/rockbox-manual-img92.png}

\end{center}
&
.ch8
&
Play a Chip8 game
\\\hline

\begin{center}
 [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.318cm,height=0.423cm]{images/rockbox-manual-img93.png}

\end{center}
&
.jpg
&
View a JPEG image
\\\hline

\begin{center}
 [Warning: Image ignored] % Unhandled or unsupported graphics:
%\includegraphics[width=0.319cm,height=0.42cm]{images/rockbox-manual-img94.png}

\end{center}
&
.rvf
&
View a movie (Rockbox format)
\\\hline
\end{tabular}\end{center}

\section{Bug reports}
If you experience inappropriate performance from any supported feature,
please file a bug report on our web page. Do not report missing
features as bugs, instead file them as feature requests (see below).

For open bug reports refer to
\url{http://www.rockbox.org/bugs.shtml}{http://www.rockbox.org/bugs.shtml}

{\bfseries
Rules for submitting new bug reports:}

\begin{enumerate}
\item  Check that the bug hasn't already been reported
\item  Always include the following information in your bug report:
\end{enumerate}
\begin{itemize}
\item \begin{itemize}
\item  Which exact model Jukebox you have (as printed on the unit)
\item  Which exact ROM firmware version you have
\item  Which exact Rockbox version you are using
(Menu{}-{\textgreater}Info {}-{\textgreater} Version)
\item  A step{}-by{}-step description of what you did and what happened
\item  Whether the problem is repeatable or a one{}-time
\foreignlanguage{english}{occurrence}
\item  All relevant data regarding the problem, such as playlists, MP3
files etc. (IMPORTANT!) 
\end{itemize}
\end{itemize}
\begin{enumerate}
\item  If you have a Sourceforge account, log
in before you file the report.
\item  If you don't have a SF account, sign the report
with your email. 
\end{enumerate}

\section{Feature requests}
For open feature requests refer to
\url{http://www.rockbox.org/requests.shtml}

{\bfseries
Rules for submitting a new feature request:}

\begin{enumerate}
\item Check that the feature hasn't already been
requested. Duplicates are really boring!
\item Check that the feature hasn't already been
implemented. Download the latest daily build and/or search the mail
list archive.
\item Check that the feature is possible to implement (see page
\pageref{ref:NODO}).
\item You must be logged in with your Sourceforge account to submit a
request. If you don't have an account, get one. 
\end{enumerate}


\subsection{\label{ref:NODO}Features we will not implement}
This is a list of Feature Requests we get repeatedly that we simply
cannot do. View it as the opposite of a TODO!

\begin{itemize}
\item {\bfseries
Record to WAV (uncompressed) or MP3pro format!}

The recording hardware (the MAS) does not allow us to do this
\item {\bfseries
Crossfade between tracks!}
Crossfading would require two mp3 decoders,
and we only have one. This is not possible.
\item {\bfseries
Interfacing with other USB devices (like cameras) or 2 player games over
USB}

The USB system demands that there is a master that talks to a slave. The
Jukebox can only serve as a slave, as most other USB devices such as
cameras can. Thus, without a master no communication between the slaves
can take place.

If that is not enough, we have no ways of actually controlling the
communication performed over USB since the USB circuit in the Jukebox
is strictly made for disk{}-access and does not allow us to play with
it the way we'd need for any good communication to
work.
\item {\bfseries
Support MP3pro, WMA or other sound format playback!}

The mp3{}-decoding hardware can only play MP3. We cannot make it play
other sound formats.
\item {\bfseries
Converting OGG{}-{\textgreater}MP3}

The mp3{}-decoding hardware cannot decode OGG. It can be reprogrammed,
but there is too little memory for OGG and we have no documentation on
how to program the MAS' DSP.

Doing the conversion with the CPU is impossible, since a 12MHz SH1 is
far too slow for this daunting task.
\item {\bfseries
Archos Multimedia support!}

The Archos Multimedia is a completely different beast. It is an entirely
different architecture, different CPU and upgrading the software is
done a completely different way. We do not wish to venture into this. 

Others may do so. We won't.
\item {\bfseries
Multi{}-band (or graphic) equaliser!}

We cannot access information for that kind of visualisation from the MP3
decoding hardware.
\item {\bfseries
Support other filesystems than FAT32 (like
NTFS or ext2 or whatever)!}

No. Rockbox needs to support FAT32 since it can only start off a FAT32
partition (since that is the only way the ROM can load it), and adding
support for more file systems will just take away valuable ram for
unnecessary features.

You can partition your Jukebox fine, just make sure the first one is
FAT32 and then make the other ones whatever file system you want. Just
don't expect Rockbox to understand them.
\item {\bfseries
Add scandisk{}-like features!}

It would be a very slow operation that would drain the batteries and
take a lot of useful ram for something that is much better and faster
done when connected to a host computer.
\item {\bfseries
CBR recording!}

The MP3 encoding hardware does not allow this.
\item {\bfseries
Change tempo of a song without changing pitch!}

The MP3 decoding hardware does not allow this.
\end{itemize}
\begin{itemize}
\item {\bfseries
Graphic frequency (spectrum analyser!)}

We can't access the audio waveform from the MP3 decoder
so we can't analyse it. Even if we had access to it, the CPU would probably be too slow to perform the analysis anyway.
\end{itemize}
\begin{itemize}
\item {\bfseries
Cool sound effects!}

Adding new sound effects requires reprogramming the MAS chip, and we
can't do that. The MAS chip is programmable, but we
have no access to the chip documentation.
\end{itemize}



\section{What's new since 2.0?}
{\bfseries
Changes in version 2.4}

\begin{itemize}
\item Improved shuffle
\item Improved disk write performance
\item Improved Ondio support
\item Various bug fixes
\item Added 74 and 80 minute recording time splits for convenient CD
creation
\end{itemize}
{\bfseries
Changes in version 2.3}

\begin{itemize}
\item {\bfseries
General changes since 2.2}

\begin{itemize}
\item Spoken menus, filenames and directories
\item Support for Archos Ondio
\item File type associations and ``open with...'' plugin bindings
\item Added ability to delete directories, even recursively
\item New WPS tags for information about next song in playlist
\item ON+PLAY menu can now also be accessed with a long press on PLAY
\item New directory sort options: date and file type
\item Clean shutdown which spins down the disk before cutting power
\item Faster scrolling in file browser
\item Easy{}-to{}-use installation program for windows
\item New language: Bulgarian
\item New plugins: Sort, euroconverter, search, chess clock, vbrfix,
stopwatch, metronome
\end{itemize}
\item {\bfseries
Recorder{}-specific changes since 2.2}

\begin{itemize}
\item During recording disk doesn't spin up until
needed, allowing undisturbed use of internal mic for short recordings
\item Optional button help bar at bottom of screen
\item More detailed MDB (dynamic bass) settings
\item ROMbox, optionally saving \~{}170KB RAM by running code from flash
on Recorder v1 and Ondio SP
\item Recording can pause
\item Recorded files now get ID3 v2.3 tags instead of v2.4, since some
tools have problems reading v2.4 tags
\item Red LED behaviour changed during recording: On during recording
and blinking when paused
\item New font format. 2.3 requires new fonts, 2.2 fonts are not
compatible.
\item New plugins: Minesweeper, solitaire, mp3 split editor, snake2,
pong, JPEG viewer, Mandelbrot
\end{itemize}
\end{itemize}
{\bfseries
Changes in version 2.2}

\begin{itemize}
\item Bookmarking functions added
\item Improved playlist support
\item WPS enhancements
\item New plugins: greyscale, Mandelbrot,
metronome
\item Recording enhancements (recorder)
\item Bug fixes
\end{itemize}
{\bfseries
General changes since 2.0}

\begin{itemize}
\item Loadable plugins
\item Dynamic playlist creation and manipulation
\item Configurable max directory size (default: 400 files)
\item Configurable max playlist size (default: 10000 files)
\item Remote control now works while keys are locked
\item Car mode: Pauses and resumes playback with charger power loss and
restore
\item Caption backlight: Briefly turns on backlight during track change
\item Battery meter is more accurate during the first minutes after boot
\item Automatically detects modified archos.mod/ ajbrec.ajz after
exiting USB mode and asks if you want to run it
\item Files and configurations in /.rockbox are now accessible from Menu
\item Stopped playlists can be resumed from File Browser by pressing ON
\item Never turns off/reboots while charger is connected
\item .wps files now support comments
\item Improved ID3v2 support
\item Option of hiding icons in File Browser
\end{itemize}
{\bfseries
Player{}-specific changes since 2.0}

\begin{itemize}
\item Games: Jackpot and NIM
\item Jump scroll: Scrolls the entire screen width each step
\item The Line In port is enabled
\end{itemize}
{\bfseries
Recorder{}-specific changes since 2.0}

\begin{itemize}
\item Rockbox can now be stored in flash ROM, giving much quicker boot up
\item Support for V2 recorders
\item Radio support (FM Recorder only)
\item Default contrast is now auto{}-detected, preventing unreadable
display
\item Option of using an inverted bar instead of cursor in File Browser
and Menu
\item Frame{}-accurate recording file splits set manually or preset by time
\item Improved Xing header generation in recorded files
\item New games: FlipIt, Snake, Star, Sliding Puzzle and Chip8 emulator
\item A calendar application plugin
\end{itemize}


\section{Credits}
People that have contributed to the project, one way or another.
Friends!}

\begin{center}
\begin{minipage}{16.15cm}
Bj\"orn Stenberg \newline
Linus Nielsen Feltzing \newline
Andy Choi \newline
Andrew Jamieson \newline
Paul Suade \newline
Joachim Schiffer \newline
Daniel Stenberg \newline
Alan Korr \newline
Gary Czvitkovicz \newline
Stuart Martin \newline
Felix Arends \newline
Ulf Ralberg \newline
David H\"ardeman \newline
Thomas Saeys \newline
Grant Wier \newline
Julien Labruy\'ere \newline
Nicolas Sauzede \newline
Robert Hak \newline
Dave Chapman \newline
Stefan Meyer \newline
Eric Linenberg \newline
Tom Cvitan \newline
Magnus \"Oman \newline
Jerome Kuptz \newline
Julien Boissinot \newline
Nuutti Kotivuori \newline
Heikki Hannikainen \newline
Hardeep Sidhu \newline
Markus Braun \newline
Justin Heiner \newline
Magnus Holmgren \newline
Bill Napier \newline
George Styles \newline
Mats Lidell \newline
Lee Marlow \newline
Nate Nystrom \newline
Nick Robinson \newline
Chad Lockwood \newline
John Pybus \newline
Uwe Freese \newline
Randy Wood \newline
Gregory Haerr \newline
Philipp Pertermann \newline
Gilles Roux \newline
Mark Hillebrand \newline
Damien Teney \newline
Andreas Zwirtes \newline
Kjell Ericson \newline
Jim Hagani \newline
Ludovic Lange \newline
Mike Holden \newline
Simon El\'en \newline
Matthew P. OReilly \newline
Christian Sch\"onberger \newline
Henrik Backe \newline
Craig Sather \newline
Jos\'e Maria Garcia{}-Valdecasas Bernal\newline
Stevie Oh \newline
J\"org Hohensohn \newline
Dave Jones \newline
Thomas Paul Diffenbach \newline
Roland Kletzing \newline
Itai Shaked \newline
Keith Hubbard \newline
Benjamin Metzler \newline
Frederic Dang Ngoc \newline
Pierre Delore \newline
Huw Smith \newline
Garrett Derner \newline
Barry McIntosh \newline
Leslie Donaldson \newline
Lee Pilgrim \newline
Zakk Roberts \newline
Francois Boucher \newline
Matthias Wientapper \newline
Brent Coutts \newline
Jens Arnold \newline
Gerald Vanbaren \newline
Christi Scarborough \newline
Steve Cundari \newline
Mat Holton \newline
Jan Gajdos \newline
Antoine Cellerier \newline
Brian King \newline
Jiri Jurecek \newline
Jacob Erlbeck 
\end{minipage}\end{center}


\section{GNU Free Documentation Licence}
Version 1.2, November 2002

\begin{verbatim}
Copyright (C) 2000,2001,2002  Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
\end{verbatim}

\textbf{0. PREAMBLE}
The purpose of this License is to make a manual, textbook, or other functional and useful document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference. 

\textbf{1. APPLICABILITY AND DEFINITIONS}
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The "Invariant Sections" are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License. If a section does not fit the above definition of Secondary then it is not allowed to be designated as Invariant. The Document may contain zero Invariant Sections. If the Document does not identify any Invariant Sections then there are none.

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\textbf{2. VERBATIM COPYING}
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If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages.

If you publish or distribute Opaque copies of the Document numbering more than 100, you must either include a machine-readable Transparent copy along with each Opaque copy, or state in or with each Opaque copy a computer-network location from which the general network-using public has access to download using public-standard network protocols a complete Transparent copy of the Document, free of added material. If you use the latter option, you must take reasonably prudent steps, when you begin distribution of Opaque copies in quantity, to ensure that this Transparent copy will remain thus accessible at the stated location until at least one year after the last time you distribute an Opaque copy (directly or through your agents or retailers) of that edition to the public.

It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document. 


\textbf{4. MODIFICATIONS}

You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:

    * A. Use in the Title Page (and on the covers, if any) a title distinct from that of the Document, and from those of previous versions (which should, if there were any, be listed in the History section of the Document). You may use the same title as a previous version if the original publisher of that version gives permission.
    * B. List on the Title Page, as authors, one or more persons or entities responsible for authorship of the modifications in the Modified Version, together with at least five of the principal authors of the Document (all of its principal authors, if it has fewer than five), unless they release you from this requirement.
    * C. State on the Title page the name of the publisher of the Modified Version, as the publisher.
    * D. Preserve all the copyright notices of the Document.
    * E. Add an appropriate copyright notice for your modifications adjacent to the other copyright notices.
    * F. Include, immediately after the copyright notices, a license notice giving the public permission to use the Modified Version under the terms of this License, in the form shown in the Addendum below.
    * G. Preserve in that license notice the full lists of Invariant Sections and required Cover Texts given in the Document's license notice.
    * H. Include an unaltered copy of this License.
    * I. Preserve the section Entitled "History", Preserve its Title, and add to it an item stating at least the title, year, new authors, and publisher of the Modified Version as given on the Title Page. If there is no section Entitled "History" in the Document, create one stating the title, year, authors, and publisher of the Document as given on its Title Page, then add an item describing the Modified Version as stated in the previous sentence.
    * J. Preserve the network location, if any, given in the Document for public access to a Transparent copy of the Document, and likewise the network locations given in the Document for previous versions it was based on. These may be placed in the "History" section. You may omit a network location for a work that was published at least four years before the Document itself, or if the original publisher of the version it refers to gives permission.
    * K. For any section Entitled "Acknowledgements" or "Dedications", Preserve the Title of the section, and preserve in the section all the substance and tone of each of the contributor acknowledgements and/or dedications given therein.
    * L. Preserve all the Invariant Sections of the Document, unaltered in their text and in their titles. Section numbers or the equivalent are not considered part of the section titles.
    * M. Delete any section Entitled "Endorsements". Such a section may not be included in the Modified Version.
    * N. Do not retitle any existing section to be Entitled "Endorsements" or to conflict in title with any Invariant Section.
    * O. Preserve any Warranty Disclaimers. 

If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version's license notice. These titles must be distinct from any other section titles.

You may add a section Entitled "Endorsements", provided it contains nothing but endorsements of your Modified Version by various parties--for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.

You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one.

The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version.

\textbf{5. COMBINING DOCUMENTS}
You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers.

The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If there are multiple Invariant Sections with the same name but different contents, make the title of each such section unique by adding at the end of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to the section titles in the list of Invariant Sections in the license notice of the combined work.

In the combination, you must combine any sections Entitled "History" in the various original documents, forming one section Entitled "History"; likewise combine any sections Entitled "Acknowledgements", and any sections Entitled "Dedications". You must delete all sections Entitled "Endorsements."

\textbf{6. COLLECTIONS OF DOCUMENTS}
You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim copying of each of the documents in all other respects.

You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License into the extracted document, and follow this License in all other respects regarding verbatim copying of that document. 

\textbf{7. AGGREGATION WITH INDEPENDENT WORKS}
A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, is called an "aggregate" if the copyright resulting from the compilation is not used to limit the legal rights of the compilation's users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in the aggregate which are not themselves derivative works of the Document.

If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one half of the entire aggregate, the Document's Cover Texts may be placed on covers that bracket the Document within the aggregate, or the electronic equivalent of covers if the Document is in electronic form. Otherwise they must appear on printed covers that bracket the whole aggregate. 

\textbf{8. TRANSLATION}
Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail.

If a section in the Document is Entitled "Acknowledgements", "Dedications", or "History", the requirement (section 4) to Preserve its Title (section 1) will typically require changing the actual title. 

\textbf{9. TERMINATION}
You may not copy, modify, sublicense, or distribute the Document except as expressly provided for under this License. Any other attempt to copy, modify, sublicense or distribute the Document is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.

\textbf{10. FUTURE REVISIONS OF THIS LICENSE}
The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See http://www.gnu.org/copyleft/.

Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation.