Comments

Chienworks wrote on 7/31/2015, 7:20 AM
Probably Vegas Studio doesn't come with the necessary codec already installed. You may be able to install a codec that would allow it though. I suggest you start reading here: http://www.webmproject.org/
musicvid10 wrote on 7/31/2015, 8:13 AM
I think ffmpeg is your best solution. Render an intermediate in Vegas.

The vfw VP8 codec that works in Vegas is slow, several years old, and is not being developed.
Free converters online have no controls.
Sorenson Squeeze is a $200 paid solution.