[theora] ogg, ogm or mkv

[Remco]

On Mon, May 18, 2009 at 2:29 AM, Gregory Maxwell <gmaxwell at gmail.com> wrote:
> Can you send a link to information on "super" and it theora support?
> "Ogm" for theora is very unusual. Are you sure they aren't just using
> Ogg/theora with the wrong extension (ogg and ogv are correct). Can you
> point us to a file from it?

What are the strengths and weaknesses of ogv, ogm and mkv? Matroska
seems to be most feature-rich. Why is that format not a
recommendation?

Remco