Our partner SeenThis has a technology which enables a bureau / publisher to exceed the standard video weight restriction of 3.5MB. Essentially, SeenThis breaks an MP4 into small "pieces" and streams it. It helps improve quality and streaming of video for large campaigns.
We have a API-integration with SeenThis. If you want to learn more about these opportunities, please reach out to your local sales representative or firstname.lastname@example.org.