Can an mkv file be opened in Vegas Movie Studio 15? I tried using import but when I navigate to the file the mkv file is not shown.
Nope. MKV wrapper is not supported.
Convert your file in Handbrake or parse it in MKVExtract.
converting can cause a quality loss, though, unless handbrake has added some kind of remuxing feature.
I've used ffmpeg to remux few mkv files to mp4, basically like this:
ffmpeg -i original_file.mkv -c:v copy -c:a copy remuxed.mp4
this just copies the video and audio streams from mkv to mp4 container, with no quality loss and *very* quickly.
This of course only works if the video and audio streams are supported by the output container.
@malix82
You are trying to be helpful, but the poster is a beginner, has no presumed knowledge of command line interface..
We will be most helpful if we keep it simple and give him a solution he can hang his hat on. Not all MKV formats are compatible with MP4 wrapper, by the way.
MKVExtract will remux the same way in a GUI. So should AVIDemux, for that matter.