Sony HDR-AS15 - Manual (Page 155)

Preamble
The licenses for most software are designed to take away your freedom to share and
change it. By contrast, the GNU General Public Licenses are
intended to guarantee your freedom to share and change free software--to make sure
the software is free for all its users.
This license, the Lesser General Public License, applies to some specially designated
software packages--typically libraries--of the Free Software
Foundation and other authors who decide to use it. You can use it too, but we suggest
you first think carefully about whether this license or the ordinary
General Public License is the better strategy to use in any particular case, based on the
explanations below.
When we speak of free software, we are referring to freedom of use, not price. Our
General Public Licenses are designed to make sure that you have the
freedom to distribute copies of free software (and charge for this service if you wish);
that you receive source code or can get it if you want it; that you
can change the software and use pieces of it in new free programs; and that you are
informed that you can do these things.
To protect your rights, we need to make restrictions that forbid distributors to deny you
these rights or to ask you to surrender these rights. These
restrictions translate to certain responsibilities for you if you distribute copies of the
library or if you modify it.
For example, if you distribute copies of the library, whether gratis or for a fee, you must
give the recipients all the rights that we gave you. You must make
sure that they, too, receive or can get the source code. If you link other code with the
library, you must provide complete object files to the recipients, so
that they can relink them with the library after making changes to the library and
recompiling it. And you must show them these terms so they know their
rights.
We protect your rights with a two-step method: (1) we copyright the library, and (2) we
offer you this license, which gives you legal permission to copy,
distribute and/or modify the library.
To protect each distributor, we want to make it very clear that there is no warranty for
the free library. Also, if the library is modified by someone else and
passed on, the recipients should know that what they have is not the original version, so
that the original author's reputation will not be affected by
problems that might be introduced by others.