<s>
On2	B-Application
TrueMotion	B-Application
VP3	B-Algorithm
is	O
a	O
(	O
royalty-free	O
)	O
lossy	B-Algorithm
video	B-Algorithm
compression	I-Algorithm
format	I-Algorithm
and	O
video	B-Application
codec	I-Application
.	O
</s>
<s>
It	O
is	O
an	O
incarnation	O
of	O
the	O
TrueMotion	B-Application
video	B-Application
codec	I-Application
,	O
a	O
series	O
of	O
video	B-Application
codecs	I-Application
developed	O
by	O
On2	B-Application
Technologies	I-Application
.	O
</s>
<s>
There	O
is	O
no	O
formal	O
specification	O
for	O
the	O
VP3	B-Algorithm
bitstream	B-General_Concept
format	I-General_Concept
beyond	O
the	O
VP3	B-Algorithm
source	O
code	O
published	O
by	O
On2	B-Application
Technologies	I-Application
.	O
</s>
<s>
In	O
2003	O
,	O
Mike	O
Melanson	O
created	O
an	O
incomplete	O
description	O
of	O
the	O
VP3	B-Algorithm
bitstream	B-General_Concept
format	I-General_Concept
and	O
decoding	O
process	O
at	O
a	O
higher	O
level	O
than	O
source	O
code	O
,	O
with	O
some	O
help	O
from	O
On2	B-Application
and	O
the	O
Xiph.Org	B-Application
Foundation	I-Application
.	O
</s>
<s>
VP3	B-Algorithm
was	O
originally	O
a	O
proprietary	B-Application
and	O
patented	O
video	B-Application
codec	I-Application
.	O
</s>
<s>
On2	B-Application
TrueMotion	B-Application
VP3.1	O
was	O
introduced	O
in	O
May	O
2000	O
followed	O
three	O
months	O
later	O
by	O
the	O
VP3.2	O
release	O
.	O
</s>
<s>
Later	O
that	O
year	O
,	O
On2	B-Application
announced	O
VP3	B-Algorithm
plugins	O
for	O
QuickTime	B-Application
and	O
RealPlayer	B-Application
.	O
</s>
<s>
In	O
May	O
2001	O
,	O
On2	B-Application
released	O
the	O
beta	O
version	O
of	O
its	O
new	O
VP4	O
proprietary	B-Application
codec	O
.	O
</s>
<s>
In	O
June	O
2001	O
,	O
On2	B-Application
also	O
released	O
a	O
VP3	B-Algorithm
codec	O
implementation	O
for	O
Microsoft	B-Application
Windows	I-Application
where	O
the	O
encoder	O
was	O
priced	O
at	O
$39.95	O
for	O
personal	O
use	O
,	O
and	O
$	O
2,995	O
for	O
limited	O
commercial	O
use	O
.	O
</s>
<s>
In	O
August	O
2001	O
,	O
On2	B-Application
Technologies	I-Application
announced	O
that	O
they	O
would	O
be	O
releasing	O
an	O
open	B-License
source	I-License
version	O
of	O
their	O
VP3.2	O
video	O
compression	O
algorithm	O
.	O
</s>
<s>
In	O
September	O
2001	O
they	O
published	O
the	O
source	O
code	O
and	O
open	B-License
source	I-License
license	O
for	O
VP3.2	O
video	O
compression	O
algorithm	O
at	O
www.vp3.com	O
.	O
</s>
<s>
The	O
VP3.2	O
Public	O
License	O
0.1	O
granted	O
the	O
right	O
to	O
modify	O
the	O
source	O
code	O
only	O
if	O
the	O
resulting	O
larger	O
work	O
continued	O
to	O
support	O
playback	O
of	O
VP3.2	O
data	O
.	O
</s>
<s>
In	O
September	O
,	O
2001	O
it	O
was	O
donated	O
to	O
the	O
public	O
as	O
open	B-License
source	I-License
,	O
and	O
On2	B-Application
irrevocably	O
disclaimed	O
all	O
rights	O
to	O
it	O
,	O
granting	O
a	O
royalty-free	O
license	O
grant	O
for	O
any	O
patent	O
claims	O
it	O
might	O
have	O
over	O
the	O
software	O
and	O
any	O
derivatives	O
,	O
allowing	O
anyone	O
to	O
use	O
any	O
VP3-derived	O
codec	O
for	O
any	O
purpose	O
.	O
</s>
<s>
In	O
March	O
2002	O
,	O
On2	B-Application
altered	O
licensing	O
terms	O
required	O
to	O
download	O
the	O
source	O
code	O
for	O
VP3	B-Algorithm
to	O
LGPL	B-Application
.	O
</s>
<s>
In	O
June	O
2002	O
On2	B-Application
donated	O
VP3	B-Algorithm
to	O
the	O
Xiph.org	B-Application
Foundation	I-Application
under	O
a	O
BSD-like	O
open	B-License
source	I-License
license	O
to	O
make	O
VP3	B-Algorithm
the	O
basis	O
of	O
a	O
new	O
,	O
free	O
(	O
e.g.	O
</s>
<s>
patent	O
-	O
and	O
royalty-free	O
)	O
video	B-Application
codec	I-Application
,	O
Theora	B-Algorithm
.	O
</s>
<s>
The	O
free	O
video	B-Application
codec	I-Application
Theora	B-Algorithm
was	O
forked	O
off	O
from	O
the	O
released	O
codebase	O
of	O
VP3.2	O
and	O
further	O
developed	O
into	O
an	O
independent	O
codec	O
.	O
</s>
<s>
On2	B-Application
declared	O
Theora	B-Algorithm
to	O
be	O
the	O
successor	O
in	O
VP3	B-Algorithm
's	O
lineage	O
.	O
</s>
<s>
Theora	B-Algorithm
developers	O
declared	O
a	O
freeze	O
on	O
the	O
Theora	B-Algorithm
I	O
bitstream	B-General_Concept
format	I-General_Concept
in	O
June	O
2004	O
,	O
allowing	O
other	O
companies	O
to	O
start	O
implementing	O
encoders	O
and	O
decoders	O
for	O
the	O
format	O
without	O
worrying	O
about	O
the	O
format	O
changing	O
in	O
incompatible	O
ways	O
.	O
</s>
<s>
The	O
Theora	B-Algorithm
I	O
Specification	O
was	O
published	O
in	O
September	O
2004	O
.	O
</s>
<s>
A	O
first	O
stable	O
release	O
(	O
version	O
1.0	O
)	O
of	O
the	O
Theora	B-Algorithm
reference	O
implementation	O
(	O
libtheora	B-Algorithm
)	O
was	O
released	O
in	O
November	O
2008	O
.	O
</s>
<s>
On2	B-Application
Technologies	I-Application
released	O
the	O
beta	O
version	O
of	O
VP4	O
on	O
May	O
21	O
,	O
2001	O
.	O
</s>
<s>
In	O
June	O
2001	O
On2	B-Application
Technologies	I-Application
posted	O
the	O
production	O
release	O
of	O
VP4	O
on	O
its	O
website	O
.	O
</s>
<s>
VP4	O
brought	O
an	O
improved	O
encoder	O
for	O
VP3	B-Algorithm
bitstream	B-General_Concept
format	I-General_Concept
.	O
</s>
<s>
So	O
because	O
of	O
keeping	O
the	O
bitstream	B-General_Concept
format	I-General_Concept
VP4	O
ca	O
n't	O
be	O
seen	O
as	O
an	O
individual	O
codec	O
.	O
</s>
<s>
On	O
July	O
19	O
,	O
2001	O
On2	B-Application
announced	O
an	O
agreement	O
with	O
RealNetworks	O
to	O
license	O
its	O
VP4	O
video	O
compression	O
technology	O
,	O
for	O
set-top	O
boxes	O
and	O
other	O
devices	O
.	O
</s>
<s>
On2	B-Application
enabled	O
RealPlayer	B-Application
as	O
the	O
exclusive	O
media	O
player	O
for	O
the	O
VP4	O
codec	O
and	O
the	O
RealSystem	B-Application
iQ	O
architecture	O
became	O
the	O
only	O
streaming	O
media	O
platform	O
capable	O
of	O
delivering	O
the	O
VP4	O
codec	O
.	O
</s>
<s>
The	O
first	O
beta	O
version	O
of	O
a	O
plug-in	O
for	O
RealPlayer	B-Application
was	O
announced	O
in	O
January	O
2002	O
.	O
</s>
<s>
Later	O
incarnations	O
of	O
this	O
codec	O
are	O
VP5	O
,	O
VP6	B-Algorithm
,	O
VP7	O
,	O
VP8	B-Algorithm
,	O
and	O
VP9	B-Algorithm
.	O
</s>
