www.makemkv.com

dcoke22 wrote: Sun Jun 29, 2025 1:09 pm I have the movie Zack Snyder's Justice League (2021) which is too big to fit on a single disc, consequently, I have two .mkv files that make up the entire movie.

I do most of my movie watching via Plex. Plex has a feature that allows for a movie to be split across multiple files. (https://support.plex.tv/articles/naming-and-organizing-your-movie-media-files/) Fortunately for this movie, the split happens during a transition with a black screen so it is almost unnoticeable when playing via Plex.

Playback systems other than Plex might have similar functionality. If the publishers of the discs have put the transition between discs in a convenient spot, using that functionality might mean one does not need to combine two .mkv files into one.

seamus wrote: Thu Jul 17, 2025 3:35 pm

dcoke22 wrote: Sun Jun 29, 2025 1:09 pm I have the movie Zack Snyder's Justice League (2021) which is too big to fit on a single disc, consequently, I have two .mkv files that make up the entire movie.

I do most of my movie watching via Plex. Plex has a feature that allows for a movie to be split across multiple files. (https://support.plex.tv/articles/naming-and-organizing-your-movie-media-files/) Fortunately for this movie, the split happens during a transition with a black screen so it is almost unnoticeable when playing via Plex.

Playback systems other than Plex might have similar functionality. If the publishers of the discs have put the transition between discs in a convenient spot, using that functionality might mean one does not need to combine two .mkv files into one.

I do all of my movie-watching via JellyFin. AFAICS, Jellyfin has no functionality that allows you to "merge" two separate mkv files together during watching... if someone knows differently I would really appreciate some feedback! I also looked into merging with FFmpeg, but that seems to be quite complicated due to all of the "tracks" (audio, subtitles, video, etc). And the other solution mentioned here (this thread) requires a Windows box, which I do not have.

So yeah - for at least some of us - a "merge" feature in MakeMKV would be quite useful.

seamus wrote: Thu Jul 17, 2025 3:35 pm

dcoke22 wrote: Sun Jun 29, 2025 1:09 pm ...

I do all of my movie-watching via JellyFin. AFAICS, Jellyfin has no functionality that allows you to "merge" two separate mkv files together during watching... if someone knows differently I would really appreciate some feedback! I also looked into merging with FFmpeg, but that seems to be quite complicated due to all of the "tracks" (audio, subtitles, video, etc). And the other solution mentioned here (this thread) requires a Windows box, which I do not have.

So yeah - for at least some of us - a "merge" feature in MakeMKV would be quite useful.

dcoke22 wrote: Thu Jul 17, 2025 3:47 pm

seamus wrote: Thu Jul 17, 2025 3:35 pm
So yeah - for at least some of us - a "merge" feature in MakeMKV would be quite useful.

https://jellyfin.org/docs/general/server/media/movies/#multiple-parts

It would seem that Jellyfin does support movies that have multiple parts. Since I don't use Jellyfin, I have not tried it.

d00zah wrote: Thu Jul 17, 2025 3:49 pm
JellyFin, being an early fork of MediaBrowser 3/Emby, supports multi-part playback (when properly named).

https://features.jellyfin.org/posts/198 ... s-one-item

https://jellyfin.org/docs/general/serve ... ovies.html

https://emby.media/support/articles/Movie-Naming.html (see 'Split video files (file stacking)' section)

& MKVToolNix (free, multi-platform tool) can easily merge multipart releases (if that is your goal).

https://www.youtube.com/watch?v=xTGWYkB9M4A