VLC Media Player is one of the best multimedia players out there. This is because it has a clean and least complicated user interface and supports almost all multimedia formats, including audio and ...
I extracted a .h264 video track and an .ogg audio track from an MKV file. I've converted the ogg to mp4 audio, assuming it'd be a piece of cake to merge that with the h264 into a mp4 video/audio file.