Comment 3 for bug 1326296

It might be interesting to know if this happens when minidlna is linked against ffmpeg instead of libav. Some people say that libav has more bugs (some even say it's "broken"), so maybe this is one of those bugs. It should be possible to remove libav and install ffmpeg on newer Ubuntu releases, then compile minidlna manually.

libav seems like it's used in Ubuntu/Debian mostly for political reasons.

Alternatively, another distribution like Arch Linux can be used to test if the file works there with minidlna+ffmpeg. I don't have a buggy mkv file, so I can't do that. I do have an Arch Linux setup available though.