how to change track language in mkvmerge

the only solution is probably to DL the english version of the player. If you install it in a differnt directory you might be able to get two copies of GOM player, one kor and eng?

(i didnt know they put in both audio tracks in anime encodes these days) Answered Dec, 14 2010

1. Select some input files,
2. set language options for the tracks,
3. set the movie/file title,
4. select the file to write to and
5. start the muxing process.

When mmg starts up it shows the first and probably most important tab: the input tab. Here you see four different elements. The topmost input box lists all input files. Directly under this box are options that apply to the currently selected input file.

Figure 2 shows the three buttons to the right of the upper list box that can be used to add files to the list box with the add and append buttons and to remove the selected entry with the remove button.

There is a difference between adding and appending a file. Normally, the tracks of all added files are put into the resulting Matroska file in parallel. This is usually the case if you have e.g. a video track, one or more audio tracks and one or more subtitle tracks. They all contain material that belongs to the same timecodes and that has to be played simulatneously.

Appending a file on the other hand will cause all tracks of the second file to be appended to tracks of a previously added file. That way the contents of those tracks will be played one after the other. You can only concatenate tracks that are of the same kind (video to video tracks etc), have the same codec (e.g. MP3 to MP3 but not MP3 to AC3) and the same parameters (e.g. the sample rate must match).

You can tell an added file from an appended one by looking at its name. Appended files and tracks start with "++>".

Once the user has added at least one input file in the upper list box the second list box will contains all available tracks. Each track is ENabled by default and will be muxed into the resulting file. However, you can change that by simply clicking on the check box right in front of the track's name in the second list box. This is shown in figure 3.

For each of these tracks the user can select track specific options with the input boxes and check boxes below the track listing. These options will be described in the following sections.

To the right of the track list box there are two buttons with which you can control the order of the tracks in the output file. By hitting the up and down the currently selected track is moved in the appropriate direction. There are some restrictions to moving appended tracks around (the ones that start with "++>") like an appended track must not be the first track etc.

Answered Sep, 16 2010

You have to try some values, there will be some testing with trial and error involved here.
Try getting the inital sync first (at the beginning), then the stretch.
here is the order:

-y, --sync <TID:d[,o[/p]]>

Synchronize manually, delay the audio track with the id TID by d ms. The track IDs are the same as the ones given with --identify (see section TRACK IDS).

d > 0: Pad with silent samples.

d < 0: Remove samples from the beginning.

o/p: adjust the timestamps by o/p to fix linear drifts. p defaults to 1000 if omitted. Both o and p can be floating point numbers.

Defaults: no manual sync correction (which is the same as d = 0 and o/p = 1.0).

This option can be used multiple times for an input file applying to several tracks by selecting different track IDs each time. Answered Dec, 17 2010