On Wed, Jan 18, 2012 at 11:25 AM, dE . <de.techno at gmail.com> wrote: > ffmpeg does support matroska right? > > But why is it not listed in ffmpeg -formats? I mean I cant use -f mkv, it > says unrecognized format. > > Thanks. mkv is the file extension commonly used by files in the 'matroska' format. Cheers Tom