Adding another audio track

[Octo-puss]

Let's say I have an encode and want to add another audio. How do I do it?
Source is .mkv with, obviously, video+audio. I tried just launching the mkv muxer and selecting the encode as video source and the new audio track as audio. Didn't work...

[poisondeathray]

Try mkvmergegui

[Octo-puss]

I just figured few mins ago :) It works, I think.
But another thing crossed my mind. When I play the result in MPC, the audio tracks available are listed as something like "[Undetermined] (Unknown1)". Is there any way to make it display whatever I want? Sure it's no big deal, but would be nice to see what it actually is.

[poisondeathray]

Highlight the audio track, fill in the track name, language, etc...in the general track options tab

[Octo-puss]

Oh. Thanks a bunch :) I assume editing of existing stuff is possible as well?

[poisondeathray]

Oh. Thanks a bunch :) I assume editing of existing stuff is possible as well?

What kind of editing? You can do simple splitting at keyframes...that's about it :(

[Octo-puss]

No, like editing existing encode's track properties; names, etc. Basically the same as what I asked above, but with already finished stuff.