Editing On2 Technologies (section)

===TrueMotion VP3/4===
{{Main|VP3}}
On June 1, 2000, brought version 3.1; August 16, 2000 version 3.2.  The third version in the series switched to using a planar Y'CbCr 4:2:0 [[color space]].

In late 2001, On2 released their [[VP3]](.2) compression technology into the open-source community including their patents on the technology. The technology lives on in the form of [[Theora]].  The [[Xiph.Org Foundation]] created its codec ''Theora'' as a fork of the codebase of VP3.2.  The forked version added 4:2:2 and 4:4:4 sub sampling for better color quality options.

In April 2001 VP4 was published, which brought an improved encoder for the same bitstream format.{{Citation needed|date=May 2010}}