How to check if *.mkv video is internally correctly encoded?

[pxstein]

I have got a *.mkv video file.
At a first glance everything seems ok.

I can play the video with VLC player in full length.

However when I try to re-encode it (with various tools) the encoding stops around 1h and 20 min.

I guess there is internally a hidden coding/format error in file.

Is there a tool which is able to check the formal validity of a *.mkv video file?

[Baldrick]

No.

You could always try remux it with mkvmergegui. Add the mkv and make a new mkv.

Or try repair it with meteorite.

[Baldrick]

Or convert it with vlc. Under file -> convert /stream.