I have an MKV file I would like to hardsub external subtitles onto.
I am able to accomplish this with AllToAvi but it only allows me to hardsub with 28 font at most and its much to small for a 1280x720 resolution.
I tried Vdub "textsub" filter and am having trouble to get textsub to be listed in the Filters even after I installed it with vobsub following this tutorial.
I am trying to combine my subtitle .srt file with my 720p .mkv file. I have tried using "mkvmerge", but after the process completes, the subs still won't play. I use Zoom Player to play the .mkv file. The audio stream shows that the English subs are present, but they still do not play.
Well, depending on what video you've got in your .mkv, you can use either VirtualDubMod, AutoGK, or MeGUI + Avisynth. (AutoGK also uses VDubMod, so eh. It's up to you. I personally don't like it 'cuz it installs a whole bunch of programs that I honestly don't need, so I just stick to VDubMod or MeGUI.)
Anyway, if your video stream is an .avi file, then you can use VDubMod to hardsub the video. If you've got an HD file, though, then you'll have to use MeGUI.
What you need to do is just demux the .mkv file using MKVExtractGUI (download it, stick the .exe in the same folder as mkvtoolnix). You'll split the file into its components - video, audio, and subtitle.
Then, with whatever program you want, you can hardsub the video.
Once you're done, then simply remux the component files back into an .mkv container using mkvmerge.