Z:gnu-www-ja-license-list--7b387a-Google's WebM implementation i/en

Google's WebM implementation is covered by the Modified BSD License. Google also provides a separate patent license (confusingly called an &ldquo;Additional IP Rights Grant&rdquo;) for patents that Google owns or controls that are necessarily infringed by their implementation of WebM. GPL-covered software can be distributed in compliance with this license's terms: it allows distributors to exercise all of the rights granted by the GPL, while fulfilling all its conditions. Thus, all of WebM's license is free and GPL-compatible.