I am very new to Media Encoder, so admit I may be wrong, but I cannot it seems put an MP$ file into ME and render OGG or WebM videos for use on a client's website. This is somewhat surprising as Adobe can be proud of their Dreamweaver/Muse apps, thus encouraging us to use them to design and develop good websites. What do other ME users do to get around this dilemma. I have seen some on-line converter services but need some advise on the good ones. By the way I am a Mac user. From my experience in other forums, I expect some great responses from fine people as usual
You need to install 3rd party codecs to get this support.
This forum post will help: Re: Can I export WebM and OGG files from adobe media encoder?
Let me know if you need more information.